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Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2018	Apr. 14, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	LAWSON PRODUCTS INC/NEW/DE/
Entity Central Index Key	0000703604
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Amendment Flag	false
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding	8,888,335	8,888,335

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Line of Credit Facility, Remaining Borrowing Capacity	$ 20,300
Current assets:
Cash and cash equivalents	4,357	$ 4,416
Restricted cash	800	800
Accounts receivable, less allowance for doubtful accounts of $504 and $476, respectively	39,097	38,575
Allowance for Doubtful Accounts Receivable	504	476
Inventories, net	50,589	50,928
Miscellaneous receivables and prepaid expenses	4,764	3,728
Total current assets	99,607	98,447
Property, plant and equipment, net	26,392	27,333
Cash value of life insurance	12,007	11,964
Intangible Assets, Net (Excluding Goodwill)	11,342	11,813
Intangible assets, net	19,132	19,614
Deferred income taxes	20,806	21,248
Other assets	246	248
Total assets	189,532	190,667
Current liabilities:
Revolving line of credit	17,899	14,543
Accounts payable	13,209	12,394
Accrued expenses and other liabilities	28,727	33,040
Total current liabilities	59,835	59,977
Noncurrent liabilities:
Security bonus plan	12,928	12,981
Financing lease obligation	6,128	6,420
Deferred compensation	5,838	5,476
Deferred rent liability	3,329	3,512
Deferred Tax Liabilities, Net, Noncurrent	3,050	3,115
Other liabilities	4,859	5,696
Total liabilities	95,967	97,177
Stockholders' equity:
Authorized - 500,000 shares, Issued and outstanding — None	0	0
Authorized - 35,000,000 shares Issued - 8,921,609 and 8,921,302 shares, respectively Outstanding - 8,888,335 and 8,888,028 shares, respectively	8,922	8,921
Capital in excess of par value	13,655	13,005
Retained earnings	72,360	71,453
Treasury stock – 33,274 shares	(711)	(711)
Accumulated other comprehensive income (loss)	(661)	822
Total stockholders’ equity	93,565	93,490
Total liabilities and stockholders’ equity	$ 189,532	$ 190,667

Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	500,000	500,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	35,000,000	35,000,000
Common stock, shares issued	8,921,609	8,921,302
Common stock, shares outstanding	8,888,335	8,888,028
Treasury Stock, Shares	33,274	33,274

Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Product revenue	$ 74,970	$ 74,617
Service revenue	9,489	0
Total revenue	84,459	74,617
Product cost of goods sold	34,832	29,738
Service cost of goods sold	3,409	0
Cost of goods sold	38,241
Gross profit	46,218	44,879
Operating expenses:
Selling expenses	21,940	24,804
General and administrative expenses	22,441	19,363
Operating expenses	44,381	44,167
Operating income	1,837	712
Interest expense (benefit)	(240)	(94)
Other income, net	287	225
Income before income taxes	1,884	843
Income tax expense (benefit)	$ 648	$ (14)
Income per share of common stock:
Basic income per share of common stock	$ 0.14	$ 0.10
Diluted income per share of common stock	$ 0.13	$ 0.09
Weighted average shares outstanding:
Basic weighted average shares outstanding	8,888	8,834
Effect of dilutive securities outstanding	297	255
Diluted weighted average shares outstanding	9,185	9,089
Comprehensive income:
Net income	$ 1,236	$ 857
Adjustment for foreign currency translation	(1,483)	73
Net comprehensive income (loss)	$ (247)	$ 930

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating activities:
Net income	$ 1,236	$ 857
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	1,686	1,705
Stock-based compensation	970	(30)
Increase (Decrease) in Deferred Income Taxes	454	0
Changes in operating assets and liabilities:
Accounts receivable	(831)	(3,894)
Inventories	19	(626)
Prepaid expenses and other assets	(1,864)	(305)
Accounts payable and other liabilities	(4,277)	(1,099)
Other	116	116
Net cash used in operating activities	(2,491)	(3,276)
Investing activities:
Purchases of property, plant and equipment	(652)	(204)
Business acquisitions	(157)	0
Net cash used in investing activities	(809)	(204)
Financing activities:
Net proceeds from revolving line of credit	3,356	957
Net cash provided by financing activities	3,356	957
Effect of exchange rate changes on cash and cash equivalents	(115)	75
Decrease in cash, cash equivalents and restricted cash	(59)	(2,448)
Cash, Cash Equivalents and Restricted Cash	5,216	11,221
Cash, Cash Equivalents and Restricted Cash	$ 5,157	$ 8,773

Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Basis of Presentation and Summary of Significant Accounting Policies The accompanying unaudited condensed consolidated financial statements of Lawson Products, Inc. (the “Company”) have been prepared in accordance with generally accepted accounting principles for interim financial information, the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not contain all disclosures required by generally accepted accounting principles. Reference should be made to the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. In the opinion of the Company, all normal recurring adjustments have been made that are necessary to present fairly the results of operations for the interim periods. Operating results for the three month period ended March 31, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018. The Company has two operating segments. The first segment is the Lawson operating segment distributes maintenance, repair and operations ("MRO") products to customers primarily through a network of sales representatives offering vendor managed inventory ("VMI") service to customers throughout the United States and Canada. The second segment is the Bolt Supply operating segment distributes MRO products primarily through its 13 branches located in Western Canada.

Revenue Recognition Revenue Recognition

3 Months Ended

Mar. 31, 2018

Deferred Revenue Disclosure [Abstract]

Revenue Recognition

Adoption of ASC 606

On January 1, 2018 the Company adopted Accounting Standards Codification 606-Revenue From Contracts With Customers (“ASC 606”). As part of the Company's adoption of ASC 606, it concluded that it has two separate performance obligations, and accordingly, two separate revenue streams: product and services. As a result, the Company is now reporting two separate revenue streams and two separate costs of revenues. The adoption of ASC 606 had a minimal impact on total reported revenues, costs and net income for the first quarter of 2018. However, the adoption required prospective reclassification of certain selling expenses associated with the separately identified vendor managed inventory services performance obligation costs historically classified as selling expenses to cost of sales. As ASC 606 was adopted on a modified retrospective method, prior quarters are not restated. The following information is intended to provide comparable information on selected financial statement line items in accordance with both ASC 606 and previous accounting literature (ASC 605 Revenue Recognition). Effective January 1, 2018, the Company recorded a cumulative effect adjustment in opening retained earnings in the amount of $0.3 million based on applying the guidance to the customer contracts that were not completed on that date.

ASC 606 defines a five step process to recognize revenues at the time and in an amount that reflects the consideration expected to be received for the performance obligations that have been provided. ASC 606 defines contracts as written, oral and through customary business practice. Under this definition, the Company considers contracts to be created at the time an order to purchase product is agreed upon regardless of whether or not there is a written contract.

Performance Obligations

Lawson has two operating segments ; the Lawson segment and the Bolt Supply segment. These customer contracts have the following performance obligations:

The Lawson segment has two distinct performance obligations offered to its customers: a product performance obligation and a service performance obligation. Although the Company has identified that it offers its customers both a product and a service obligation, the customer only receives one invoice per transaction with no price breakout between these obligations and the Company does not price its offerings based on any breakout between these obligations.

Lawson generates revenue primarily from the sale of MRO products to its customers. Revenue related to product sales is recognized at the time that control of the product has been transferred to the customer; either at the time the product is shipped or the time the product has been received by the customer. The Company does not commit to long-term contracts to sell customers a certain minimum quantity of products.

The Lawson segment offers a VMI service proposition to its customers. A portion of these services, primarily related to stocking of product and maintenance of the MRO inventory, is provided a short period of time after control of the purchased product has been transferred to the customer. Since some components of VMI service have not been provided at the time the control of the product transfers to the customer, that portion of expected consideration is deferred until the time that those services have been provided.

The Bolt Supply segment does not provide VMI services for its customers or provide services in addition to product sales to customers. Revenue is recognized at the time that control of the product has been transferred to the customer which is either upon delivery or shipment depending on the terms of the contract.

Accounting Policy Elections

The Company has elected to treat shipping and handling costs after the control of the product has been transferred to the customer as a fulfillment cost.

Sales taxes that are imposed on our sales and collected from customers are excluded from revenues.

The Company expenses sales commissions when incurred as the amortization period is one year or less.

Significant Judgments

The Company employs certain significant judgments to estimate the dollar amount of revenue, and related expenses, allocated to the sale of product and service. These judgments include, among others, the percentage of customers that take advantage of the VMI services offered, the amount of revenue to be allocated to the VMI service based on the value of the service to its customers, and the amount of time after control of the product passes to the customer that the VMI service obligation is completed. It is assumed that any customer who averages placing orders at a frequency of longer than 30 days does not take advantage of the available VMI services offered. The estimate of the cost of sales is based on expenses directly related to sales representatives that provide direct VMI services to the customer.

Financial Impact of ASC 606 Adoption

As a result of applying ASC 606 the Company recorded a liability of $0.7 million for deferred revenue on January 1, 2018. Expenses related to these revenues of $0.4 million were also deferred resulting in a net a net reduction to opening retained earnings of $0.3 million as of January 1, 2018. At March 31, 2018, the Company had a deferred revenue liability of $0.9 million and a deferred expense of $0.6 million for related expenses associated with the deferred service performance obligations, respectively. The deferral of revenue and expenses does not affect the amount, timing and any uncertainty of cash flows generated from operations.

The following table presents the impact of ASC 606 on Condensed Consolidated Statements of Income (Unaudited):



	Three Months Ended March 31, 2018
(Dollars in thousands)	As Reported			Service Revenues and Costs Adjustments			Pro-Forma as if Previous Accounting Guidance Was in Effect

Product revenue	$	74,970		$	9,664		$	84,634
Service revenue	9,489			(9,489		)	—
Net revenue	$	84,459		$	175		$	84,634

Product cost of goods sold	$	34,832		$	—		$	34,832
Service costs	3,409			(3,409		)	—
Total cost of goods sold	$	38,241		$	(3,409	)	$	34,832

Gross profit	46,218			3,584			49,802
Gross profit percentage	54.7		%				58.8		%

Selling expenses	21,940			3,546			25,486
General and administrative expenses	22,441			—			22,441
Operating expenses	44,381			3,546			47,927

Restricted Cash Restricted Cash	3 Months Ended
Restricted Cash Restricted Cash	Mar. 31, 2018
Restricted Cash [Abstract]
Cash and Cash Equivalents Disclosure [Text Block]	Restricted Cash The Company has agreed to maintain $0.8 million in a money market account as collateral for an outside party that is providing certain commercial card processing services for the Company. The Company is restricted from withdrawing this balance without the prior consent of the outside party during the term of the agreement.

- Definition

The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify.

+ References + Details

Inventories

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Inventories

Inventories, net

Inventories, net, consisting primarily of purchased goods which are offered for resale, were as follows:



	(Dollars in thousands)
	March 31, 2018			December 31, 2017
Inventories, gross	$	56,389		$	56,492
Reserve for obsolete and excess inventory	(5,800		)	(5,564		)
Inventories, net	$	50,589		$	50,928

Acquisitions Acquisition

3 Months Ended

Mar. 31, 2018

Business Combinations [Abstract]

Business Combination Disclosure [Text Block]

Acquisition

In October, 2017, the Company acquired The Bolt Supply House Ltd. ("Bolt Supply"), based in Calgary, Canada, for a purchase price of approximately $32.3 million, The purchase price was funded with cash on hand and utilization of Lawson Products’ existing credit facility. Bolt Supply is a leading Canadian distributor of high quality fasteners, power tools and industrial MRO supplies, with 13 branch locations throughout Alberta, Saskatchewan, and Manitoba, Canada.

The purchase price of the acquisition was allocated to the fair market value of Bolt Supply's assets and liabilities on the acquisition date. The fair market value appraisals of the majority of the assets and liabilities were determined by third party valuation firms including intangible assets of $7.2 million for trade names and $4.2 million for customer relationships, respectively. The trade names and customer relationships intangible assets have estimated useful lives of 15 and 12 years, respectively. The $14.0 million allocated to goodwill reflects the purchase price less the fair market value of the identifiable net assets. The fair values of the assets acquired and liabilities assumed, and the related tax balances, are based on preliminary estimates and assumptions. These preliminary estimates and assumptions could change significantly during the purchase price measurement period of one year as the Company finalizes the valuations of the assets acquired and liabilities assumed, and the related tax balances. Such changes could result in material variances between the Company's future financial results and the amounts presented in the unaudited pro forma information, including variances in the estimated purchase price, fair values recorded and expenses associated with these items. Further operating details related to the operations of Bolt Supply subsequent to the acquisition are included in Note 13 - Segment information.

The following table contains unaudited pro forma revenue and net income for Lawson Products assuming the Bolt Supply acquisition closed on January 1, 2016.



	(Dollars in thousands)
	Three Months Ended
	March 31, 2017
Revenue
Actual	$	74,617
Pro forma	81,438

Net income
Actual	$	857
Pro forma	1,090

The pro forma disclosures in the table above include adjustments for, amortization of intangible assets and acquisition costs to reflect results as if the acquisition of Bolt Supply had closed on January 1, 2016 rather than on the actual acquisition date. This pro forma information utilizes certain estimates, is presented for illustrative purposes only and is not intended to be indicative of the actual results of operation. In addition, future results may vary significantly from the results reflected in the pro forma information. The unaudited pro forma financial information does not reflect the impact of future positive or negative events that may occur after the acquisition, such as anticipated cost savings from operating synergies.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

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+ Details

Goodwill Goodwill

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill Disclosure [Text Block]

Goodwill

Goodwill activity for the first three months of 2018 and 2017 is included in the table below:



	(Dollars in thousands)
	Three Months Ended March 31,
	2018			2017
Beginning balance	$	19,614		$	5,520
Adjustment to original acquisition allocation	(17		)	—
Impact of foreign exchange	(465		)	40
Ending balance	$	19,132		$	5,560

Loan Agreement

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Loan Agreement

Lawson Loan Agreement

In 2012, the Company entered into a Loan and Security Agreement (“Loan Agreement”). The Loan Agreement consists of a $40.0 million revolving line of credit facility, which includes a $10.0 million sub-facility for letters of credit. Certain terms of the original Loan Agreement have been revised by subsequent amendments.

The Loan Agreement, as amended, expires in August 2020. Due to the lock box arrangement and a subjective acceleration clause contained in the Loan Agreement, any outstanding borrowings under the revolving line of credit are classified as a current liability.

Currently, credit available under the Loan Agreement, as amended, is based upon:


a)	85% of the face amount of the Company’s eligible accounts receivable, generally less than 60 days past due, and


b)	the lesser of 60% of the lower of cost or market value of the Company’s eligible inventory, generally inventory expected to be sold within 18 months, or $20.0 million.

The applicable interest rates for borrowings are at the Prime rate or, if the Company elects, the LIBOR rate plus 1.50% to 1.85% based on the Company’s debt to EBITDA ratio. The Loan Agreement is secured by a first priority perfected security interest in substantially all existing assets of the Company. Dividends are restricted to amounts not to exceed $7.0 million annually.

At March 31, 2018, the Company had $16.2 million of borrowings under its revolving line of credit facility and additional borrowing availability of $20.3 million. The Company paid interest of $0.2 million and $0.1 million for the three months ended March 31, 2018 and 2017, respectively. The weighted average interest rate was 3.55% for the three months ended March 31, 2018 and 3.81% for the three months ended March 31, 2017.

In addition to other customary representations, warranties and covenants, the Company is required to meet a minimum trailing twelve month EBITDA to fixed charges ratio, as defined in the amended Loan Agreement, if the excess borrowing capacity is below $10.0 million. On March 31, 2018, the Company's borrowing capacity exceeded $10.0 million. Therefore, the Company was not subject to this financial covenant, however, for informational purposes the result of the financial covenant is provided below:



Quarterly Financial Covenant	Requirement	Actual
EBITDA to fixed charges ratio	1.10 : 1.00	3.61 : 1.00

Commitment Letter

Bolt Supply has a Commitment Letter with BMO Bank of Montreal ("BMO") dated March 30, 2017 which allows Bolt Supply to access up to $5.5 million Canadian dollars in the form of either an overdraft facility or as commercial letters of credit. The Commitment Letter is cancellable at any time at BMOs sole discretion and is secured by substantially all of Bolt Supply’s assets. It carries an interest rate of the bank's prime rate plus 0.25%. At March 31, 2018, Bolt Supply had $2.2 million Canadian dollars of outstanding borrowings and remaining borrowing availability of $3.3 million Canadian dollars. The Commitment Letter is subject to a working capital ratio of 1.35:1, a maximum ratio of debt to tangible net worth of 2.5:1 of the Bolt Supply assets and Debt Service Coverage Ratio 1.25:1 as defined in the Commitment Letter. At March 31, 2018, Bolt Supply was in compliance with all covenants which are subject to periodic review, at least annually, with the next review due by August 31, 2018.

Reserve for Severance

3 Months Ended

Mar. 31, 2018

Severance Reserve [Abstract]

Reserve for Severance

Severance Reserve

Changes in the Company’s reserve for severance as of March 31, 2018 and 2017 were as follows:



	(Dollars in thousands)
	Three Months Ended March 31,
	2018			2017
Balance at beginning of period	$	483		$	1,710
Charged to earnings	628			465
Payments	(308		)	(475		)
Balance at end of period	$	803		$	1,700

Stock-Based Compensation (Notes)	3 Months Ended
Stock-Based Compensation (Notes)	Mar. 31, 2018
Stock Based Compensation [Abstract]
Stock Performance Rights	Stock-Based Compensation The Company recorded stock-based compensation expense of $1.0 million and a benefit of $30 thousand for the first three months of 2018 and 2017, respectively. A portion of stock-based compensation is related to the change in the market value of the Company's common stock. A summary of stock-based awards activity during the three months ended March 31, 2018 follows: Stock Performance Rights ("SPRs") The Company issued 44,737 SPRs to key employees with an exercise price of $24.70 per share that cliff vest on December 31, 2020 and have a termination date of December 31, 2025. Restricted Stock Awards ("RSAs") The Company issued 20,059 RSAs to key employees that cliff vest on December 31, 2020. Each RSA is exchangeable for one share of the Company's common stock at the end of the vesting period. Market Stock Units ("MSUs") The Company issued 32,194 MSUs to key employees that cliff vest on December 31, 2020. MSU's are exchangeable for the Company's common stock at the end of the vesting period. The number of shares of common stock that will be issued upon vesting, ranging from zero to 48,291, will be determined based upon the trailing sixty-day weighted average closing price of the Company's common stock on December 31, 2020. For the three months ended March 31, 2018 and 2017, stock options to purchase 80,000 and 40,000 shares, respectively, of the Company's common stock were excluded from the computation of diluted earnings per share because they were anti-dilutive.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References + Details

Income Tax	3 Months Ended
Income Tax	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recorded income tax expenses of $0.6 million, a 34.4% effective tax rate for the three months ended March 31, 2018. The effective tax rate is higher than the U.S. statutory rate due mainly to state taxes, income in higher tax jurisdictions, and a Global Intangible Low Taxed Income Inclusion as a result of the 2017 Tax Cuts and Jobs Act. The Securities and Exchange Commission ("SEC") recently issued SAB 118 (Income Tax Accounting Implications of the Tax Cuts and Jobs Act) which allows registrants to record provisional amounts during a measurement period. The SAB allows a company to recognize provisional amounts when it does not have the necessary information prepared in reasonable detail to calculate the effect of the change in tax law. Per the SAB, a company should report provisional amounts when the accounting is not complete, but for which a reasonable estimate can be determined. Lawson has included in its 2017 taxable income calculation a provisional amount of approximately $8.4 million representing previously untaxed foreign earnings and profits as of December 31, 2017. The Company has not accrued any federal income tax on this amount as the company is able to utilize federal net operating losses to offset the income. An income tax benefit of $14 thousand was recorded for the three months ended March 31, 2017 as substantially all deferred tax assets were subject to a tax valuation allowance. The Company and its subsidiaries are subject to U.S. Federal income tax, as well as income tax of multiple state and foreign jurisdictions. As of March 31, 2018, the Company is subject to U.S. Federal income tax examinations for the years 2014 through 2016 and income tax examinations from various other jurisdictions for the years 2011 through 2016. Earnings from the Company’s foreign subsidiary are considered to be indefinitely reinvested. A distribution of these non-U.S. earnings in the form of dividends or otherwise may subject the Company to foreign withholding taxes and U.S. federal and state taxes.

Contingent Liability Contingent Liability (Notes)	3 Months Ended
Contingent Liability Contingent Liability (Notes)	Mar. 31, 2018
Contingent Liability [Abstract]
Environmental Contingency	Contingent Liabilities In 2012, the Company identified that a site it owns in Decatur, Alabama, contains hazardous substances in the soil and groundwater as a result of historical operations prior to the Company's ownership. The Company retained an environmental consulting firm to further investigate the contamination including the measurement and monitoring of the site. In August 2013, the site was enrolled in Alabama's voluntary cleanup program. On October 30, 2014, the Company received estimates from its environmental consulting firm for three potential remediation solutions. The estimates included a range of viable remedial approaches. The first solution included limited excavation and removal of the contaminated soil along with an extensive monitoring period. The second solution included the first solution plus the installation of a groundwater extraction system. The third scenario included the first and second solutions plus treatment injections to reduce the degradation time. The estimated expenditures over the life of the three scenarios ranged from $0.3 million to $1.4 million. As the Company had determined that a loss was probable and no scenario was more likely than the other at that time, a liability in the amount of $0.3 million was established in 2014. During 2015, after further evidence had been collected and analyzed, the Company concluded that it was probable that future remediation would be required, and accordingly accrued an additional $0.9 million for the estimated costs. In the third quarter of 2017 the Company received estimates from its environmental consulting firm for two new remediation solutions based on a chemical injection process. The first solution would consist of chemical injections throughout the entire site to directly eliminate the hazardous substances in the soil and groundwater. The second solution would consist of chemical injections around the perimeter of the site to prevent the migration of the hazardous chemicals off-site. Neither solution would require additional excavation or repairs to be made to the property. Additionally, the estimated required monitoring period would be substantially reduced. The estimated expenditures over an 18 month period under the two injection scenarios ranged from $0.9 million to $2.0 million. The Company does not expect to capitalize any amounts related to these remediation options. The Company has determined that it will initially proceed with the method of injecting chemicals around the perimeter of the site to prevent the migration of the hazardous chemicals off-site. As of March 31, 2018, approximately $1.0 million remains accrued for this remediation in other accrued expenses and other liabilities on the accompanying consolidated balance sheet. This estimate was based on the information provided to date and as the remediation efforts proceed, additional information may impact the final cost. As of March 31, 2018, agreement with Alabama’s voluntary cleanup program on viable treatment of the property has not yet been reached and the Company continues to evaluate potential remediation alternatives that could impact the ultimate cost of remediation.

Segment Information (Notes)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

Segment Information

With the acquisition of Bolt Supply in the fourth quarter of 2017, the Company operates in two reportable segments. The businesses were determined to be separate reportable segments because of differences in their financial characteristics and the methods they employ to deliver product to customers. The operating segments are reviewed by the Company’s chief operating decision maker responsible for reviewing operating performance and allocating resources. The Lawson segment primarily relies on its large network of sales representatives to visit the customer at the customers' work location and provide VMI service and produce sales orders for product that is then shipped to the customer. The Bolt Supply segment primarily sells product to customers through its 13 branch locations.

Financial information for the Company's reportable segments follows:



	(Dollars in thousands)
	Three Months Ended March 31,
	2018			2017
Revenue
Lawson product revenue	$	66,937		$	74,617
Lawson service revenue	9,489			—
Total Lawson revenue	76,426			74,617
Bolt Supply	8,033			—
Consolidated total	$	84,459		$	74,617

Gross profit
Lawson product gross profit	$	36,842		$	44,879
Lawson service gross profit	$	6,080		$	—
Total Lawson gross profit	42,922			44,879
Bolt Supply	3,296			—
Consolidated total	$	46,218		$	44,879

Operating Income
Lawson	$	1,357		$	712
Bolt Supply	480			—
Consolidated total	1,837			712
Interest expense	(240		)	(94		)
Other income, net	287			225
Income before income taxes	$	1,884		$	843

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8971-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8595-108599

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8380-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8984-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9031-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8538-108599

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 29
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8864-108599

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8924-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599

+ Details

Revenue Recognition Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2018

Deferred Revenue Disclosure [Abstract]

Schedule of Disaggregation of Revenue

The following table presents the impact of ASC 606 on Condensed Consolidated Statements of Income (Unaudited):



	Three Months Ended March 31, 2018
(Dollars in thousands)	As Reported			Service Revenues and Costs Adjustments			Pro-Forma as if Previous Accounting Guidance Was in Effect

Product revenue	$	74,970		$	9,664		$	84,634
Service revenue	9,489			(9,489		)	—
Net revenue	$	84,459		$	175		$	84,634

Product cost of goods sold	$	34,832		$	—		$	34,832
Service costs	3,409			(3,409		)	—
Total cost of goods sold	$	38,241		$	(3,409	)	$	34,832

Gross profit	46,218			3,584			49,802
Gross profit percentage	54.7		%				58.8		%

Selling expenses	21,940			3,546			25,486
General and administrative expenses	22,441			—			22,441
Operating expenses	44,381			3,546			47,927

Revenue Recognition Geographical (Tables)

3 Months Ended

Mar. 31, 2018

Geographical [Abstract]

Revenue from External Customers by Geographic Areas [Table Text Block]

Disaggregated revenue by geographic area follows:



	Three Months Ended March 31,
(Dollars in thousands)	2018		2017

United States	$	68,318	$	67,281
Canada	16,141		7,336
Consolidated total	$	84,459	$	74,617

Revenue Recognition Product Vertical (Tables)

3 Months Ended

Mar. 31, 2018

Product Vertical [Abstract]

Schedule of Product Information [Table Text Block]

Disaggregated revenue by product type follows:



	Three Months Ended March 31,
(Dollars in thousands)	2018		2017

Fastening Systems	23.8	%	20.8	%
Fluid Power	14.5	%	15.2	%
Specialty Chemicals	11.9	%	13.9	%
Cutting Tools and Abrasives	14.9	%	14.2	%
Electrical	11.2	%	12.4	%
Aftermarket Automotive Supplies	8.5	%	9.4	%
Safety	4.5	%	4.2	%
Welding and Metal Repair	1.8	%	2.4	%
Other	9.0	%	7.5	%
Consolidated Total	100.0	%	100.0	%

Inventories (Tables)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Components of inventories

Inventories, net, consisting primarily of purchased goods which are offered for resale, were as follows:



	(Dollars in thousands)
	March 31, 2018			December 31, 2017
Inventories, gross	$	56,389		$	56,492
Reserve for obsolete and excess inventory	(5,800		)	(5,564		)
Inventories, net	$	50,589		$	50,928

Acquisitions Acquisitions (Tables)

3 Months Ended

Mar. 31, 2018

Business Combinations [Abstract]

Acquisition Pro Forma Information

The following table contains unaudited pro forma revenue and net income for Lawson Products assuming the Bolt Supply acquisition closed on January 1, 2016.



	(Dollars in thousands)
	Three Months Ended
	March 31, 2017
Revenue
Actual	$	74,617
Pro forma	81,438

Net income
Actual	$	857
Pro forma	1,090

Goodwill (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

Goodwill activity for the first three months of 2018 and 2017 is included in the table below:



	(Dollars in thousands)
	Three Months Ended March 31,
	2018			2017
Beginning balance	$	19,614		$	5,520
Adjustment to original acquisition allocation	(17		)	—
Impact of foreign exchange	(465		)	40
Ending balance	$	19,132		$	5,560

Loan Agreement (Tables)

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Quarterly Financial Covenants [Table Text Block]



Quarterly Financial Covenant	Requirement	Actual
EBITDA to fixed charges ratio	1.10 : 1.00	3.61 : 1.00

Commitment Letter

Reserve for Severance (Tables)

3 Months Ended

Mar. 31, 2018

Severance Reserve [Abstract]

Changes in the Company's reserve for severance and related payments

Changes in the Company’s reserve for severance as of March 31, 2018 and 2017 were as follows:



	(Dollars in thousands)
	Three Months Ended March 31,
	2018			2017
Balance at beginning of period	$	483		$	1,710
Charged to earnings	628			465
Payments	(308		)	(475		)
Balance at end of period	$	803		$	1,700

Stock-Based Compensation (Tables)	3 Months Ended
Stock-Based Compensation (Tables)	Mar. 31, 2018
Stock Performance Rights [Abstract]
Stock Performance Rights	Stock Performance Rights ("SPRs")
Restricted Stock Awards	Restricted Stock Awards ("RSAs") The Company issued 20,059 RSAs to key employees that cliff vest on December 31, 2020. Each RSA is exchangeable for one share of the Company's common stock at the end of the vesting period.
Market Stock Units	Market Stock Units ("MSUs")

Segment Information Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Financial information for the Company's reportable segments follows:



	(Dollars in thousands)
	Three Months Ended March 31,
	2018			2017
Revenue
Lawson product revenue	$	66,937		$	74,617
Lawson service revenue	9,489			—
Total Lawson revenue	76,426			74,617
Bolt Supply	8,033			—
Consolidated total	$	84,459		$	74,617

Gross profit
Lawson product gross profit	$	36,842		$	44,879
Lawson service gross profit	$	6,080		$	—
Total Lawson gross profit	42,922			44,879
Bolt Supply	3,296			—
Consolidated total	$	46,218		$	44,879

Operating Income
Lawson	$	1,357		$	712
Bolt Supply	480			—
Consolidated total	1,837			712
Interest expense	(240		)	(94		)
Other income, net	287			225
Income before income taxes	$	1,884		$	843

Basis of Presentation and Summary of Significant Accounting Policies (Details)	3 Months Ended
	Mar. 31, 2018 Segment shares	Mar. 31, 2017 shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of Reportable Segments \| Segment	2
New Credit Facility Inventory Base Selling Period	18 months
Stock Compensation Plan [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive Options Outstanding \| shares	80,000	40,000

Revenue Recognition - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Jan. 01, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to retained earnings	$ (72,360)			$ (71,453)
Deferred revenue	900
Deferred expense	600		$ 400
Operating expenses	(44,381)	$ (44,167)
Difference between Revenue Guidance in Effect before and after Topic 606 \| Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to retained earnings			300
Deferred revenue			$ 700
Operating expenses	$ (3,546)

Revenue Recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Product revenue	$ 74,970	$ 74,617
Service revenue	9,489	0
Total revenue	84,459	74,617
Product cost of goods sold	34,832	29,738
Service cost of goods sold	3,409	0
Cost of goods sold	38,241
Gross profit	$ 46,218	44,879
Gross profit percentage	54.70%
Selling expenses	$ 21,940	24,804
General and administrative expenses	22,441	19,363
Operating expenses	44,381	44,167
Operating income	1,837	712
Calculated under Revenue Guidance in Effect before Topic 606
Disaggregation of Revenue [Line Items]
Product revenue	84,634
Service revenue	0
Total revenue	84,634
Product cost of goods sold	34,832
Service cost of goods sold	0
Cost of goods sold	34,832
Gross profit	$ 49,802
Gross profit percentage	58.80%
Selling expenses	$ 25,486
General and administrative expenses	22,441
Operating expenses	47,927
Accounting Standards Update 2014-09 \| Difference between Revenue Guidance in Effect before and after Topic 606
Disaggregation of Revenue [Line Items]
Product revenue	9,664
Service revenue	(9,489)
Total revenue	175
Product cost of goods sold	0
Service cost of goods sold	(3,409)
Cost of goods sold	(3,409)
Gross profit	3,584
Selling expenses	3,546
General and administrative expenses	0
Operating expenses	3,546
UNITED STATES
Disaggregation of Revenue [Line Items]
Total revenue	68,318	67,281
CANADA
Disaggregation of Revenue [Line Items]
Total revenue	$ 16,141	$ 7,336

Revenue Recognition Product Vertcal (Details)	3 Months Ended
Revenue Recognition Product Vertcal (Details)	Mar. 31, 2018	Mar. 31, 2017
Product Revenue [Abstract]
Fastening Systems	24.00%	21.00%
Fluid Power	15.00%	15.00%
Specialty Chemicals	12.00%	14.00%
Cutting Tools and Abrasives	15.00%	14.00%
Electrical	11.00%	12.00%
Aftermarket Automotive Supplies	8.00%	9.00%
Safety	5.00%	4.00%
Welding and Metal Repair	2.00%	2.00%
Other Products	9.00%	8.00%
Total Products	100.00%	100.00%

Restricted Cash Restricted Cash (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Restricted Cash [Abstract]
Restricted cash	$ 800	$ 800

Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Components of inventories
Inventory, Gross	$ 56,389	$ 56,492
Inventory Valuation Reserves	(5,800)	(5,564)
Inventories, net	$ 50,589	$ 50,928

Acquisitions Acquisition Detail (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Oct. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross		$ 157	$ 0
Goodwill		$ 19,132	$ 5,560	$ 19,614	$ 5,520
Bolt [Member] [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	$ 32,300
Goodwill	14,000
Trade Names [Member] \| Bolt [Member] [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 7,200
Finite-Lived Intangible Asset, Useful Life	15 years
Customer Relationships [Member] \| Bolt [Member] [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 4,200
Finite-Lived Intangible Asset, Useful Life	12 years

Acquisitions Pro Forma Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Business Combinations [Abstract]
Total revenue	$ 84,459	$ 74,617
Net Sales Pro Forma	84,459	81,438
Net Income Actual	1,236	857
Net income Pro Forma	$ 1,236	$ 1,090

Goodwill - Schedule of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Goodwill [Roll Forward]
Beginning balance	$ 19,614	$ 5,520
Adjustment to original acquisition allocation	(17)	0
Impact of foreign exchange	(465)	40
Ending balance	$ 19,132	$ 5,560

Intangible assets (Details) - USD ($) $ in Thousands	3 Months Ended
Intangible assets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 200	$ 100
Finite-Lived Intangible Assets, Gross	12,791		$ 13,093
Finite-Lived Intangible Assets, Accumulated Amortization	(1,449)		(1,280)
Finite-Lived Intangible Assets, Net	11,342		11,813
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	8,001		8,182
Finite-Lived Intangible Assets, Accumulated Amortization	(1,059)		(957)
Finite-Lived Intangible Assets, Net	6,942		7,225
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	4,790		4,911
Finite-Lived Intangible Assets, Accumulated Amortization	(390)		(323)
Finite-Lived Intangible Assets, Net	$ 4,400		$ 4,588

Loan Agreement Covenant (Details)	3 Months Ended
Loan Agreement Covenant (Details)	Mar. 31, 2018
Loan Agreement [Line Items]
Minimum Debt Service Coverage Ratio	1.25
Maximum [Member] \| Actual Value [Member]
Loan Agreement [Line Items]
Minimum Debt Service Coverage Ratio	3.61
Maximum [Member] \| Required Minimum Value [Member]
Loan Agreement [Line Items]
Minimum Debt Service Coverage Ratio	1.10
Minimum [Member] \| Actual Value [Member]
Loan Agreement [Line Items]
Minimum Debt Service Coverage Ratio	1.00
Minimum [Member] \| Required Minimum Value [Member]
Loan Agreement [Line Items]
Minimum Debt Service Coverage Ratio	1.00

Loan Agreement (Details) $ in Thousands	3 Months Ended
Loan Agreement (Details) $ in Thousands	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)
Loan Agreement [Line Items]
Excess cash capacity	$ 10,000
Credit Facility (Textual) [Abstract]
Proceeds from (Repayments of) Lines of Credit	$ 3,356	$ 957
Eligible accounts receivables percentage	85.00%
Eligible accounts receivables past due days	60 days
Eligible inventory percentage	60.00%
Eligible inventory expected to be sold period	18 months
Maximum borrowing amount based on inventory	$ 20,000
Revolving Line of Credit	17,899		$ 14,543
Line of Credit Facility, Remaining Borrowing Capacity	20,300
Interest Paid	$ 200	$ 100
Weighted average interest rate	3.55%	3.81%
Bank Overdrafts	$ 5,500
Working Capital Ratio	1.35
Ratio of Indebtedness to Net Capital	2.5
Minimum Debt Service Coverage Ratio	1.25
Maximum
Credit Facility (Textual) [Abstract]
Spread on LIBOR	1.85%
Restricted Dividends	$ 7,000
Minimum
Credit Facility (Textual) [Abstract]
Spread on LIBOR	1.50%
Revolving Credit Facility [Member]
Credit Facility (Textual) [Abstract]
Credit facility, borrowing capacity	$ 40,000
Letter of Credit [Member]
Credit Facility (Textual) [Abstract]
Credit facility, borrowing capacity	10,000
Bolt [Member] [Member]
Credit Facility (Textual) [Abstract]
Line of Credit Facility, Remaining Borrowing Capacity	3,300
Secured Debt, Current	2,200
Line of Credit [Member] \| Revolving Credit Facility [Member]
Credit Facility (Textual) [Abstract]
Long-term Debt	$ 16,200
Prime Rate [Member]
Credit Facility (Textual) [Abstract]
Spread on LIBOR	0.25%

Reserve for Severance Activity in reserve (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Reserve for severance and related payments
Balance at beginning of period	$ 483	$ 1,710
Charged to earnings	628	465
Cash paid	(308)	(475)
Balance at end of the period	$ 803	$ 1,700

Stock-Based Compensation Stock-Based Compensation Details (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Stock-Based Compensation Details
Employee Benefits and Share-based Compensation	$ 970	$ (30)
Minimum [Member]
Stock-Based Compensation Details
Equity Share Payout Range	0
Maximum [Member]
Stock-Based Compensation Details
Equity Share Payout Range	48,291
Share-based Compensation Award, Tranche Two [Member]
Stock-Based Compensation Details
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted	44,737
Share Based Compensation Non Option Equity Instruments Granted Weighted Average Exercise Price	$ 24.70

Stock-Based Compensation Restricted Stock Awards (Details)	Mar. 31, 2018 shares
Director Grant [Domain]
Stock-Based Compensation Details
Restricted Stock Awards Outstanding	20,059

Stock-Based Compensation Market Stock Units (Details)	3 Months Ended
Stock-Based Compensation Market Stock Units (Details)	Mar. 31, 2018 shares
Maximum [Member]
Stock-Based Compensation Details
Equity Share Payout Range	48,291
MSU [Member]
Stock-Based Compensation Details
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted	32,194

Stock-Based Compensation Anti Dilutive Options (Details) - shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Stock Compensation Plan [Member]
Stock-Based Compensation Details
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants	80,000	40,000

Income Tax Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended
Income Tax Income Tax (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 31, 2017
Income Tax [Abstract]
Increase (Decrease) in Deferred Income Taxes	$ (454)	$ 0
Income Tax Expense (Benefit)	$ 648	$ (14)
Effective income tax rate	34.40%

Contingent Liability Contingent Liability (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2016	Dec. 31, 2012	Dec. 31, 2016
Loss Contingencies [Line Items]
Environmental Exit Costs, Reasonably Possible Additional Losses, Low Estimate		$ 0.9
Environmental Exit Costs, Liability for Remediation	$ 1.0			$ 0.3
Minimum [Member]
Loss Contingencies [Line Items]
Environmental Exit Costs, Anticipated Cost	0.9		$ 0.3
Maximum [Member]
Loss Contingencies [Line Items]
Environmental Exit Costs, Anticipated Cost	$ 2.0		$ 1.4

Segment Information Segment Reporting (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) Segment	Mar. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Segments \| Segment	2
Total revenue	$ 84,459	$ 74,617
Gross Profit	46,218	44,879
Operating Income (Loss)	1,837	712
Interest Expense	240	94
Other Nonoperating Income (Expense)	287	225
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	1,884	843
Lawson [Member]
Segment Reporting Information [Line Items]
Total revenue	9,489	74,617
Gross Profit	6,080	44,879
Operating Income (Loss)	1,357	712
Bolt [Member] [Member]
Segment Reporting Information [Line Items]
Total revenue	8,033	0
Gross Profit	3,296	0
Operating Income (Loss)	$ 480	$ 0