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Acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2018
Acquisitions [Abstract] |
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] |
Business Acquisition, Pro Forma Information, Nonrecurring Adjustments [Table Text Block] | The following table contains unaudited pro forma net sales and net income for Lawson Products assuming the Screw Products acquisition closed on January 1, 2017.
| (Dollars in thousands)
| Year Ended December 31,
| 2019 |  | 2018
Net Sales |  |  |
Actual | $ | 370,785 |  |  | $ | 349,637 |
Pro forma (unaudited) | $ | 370,785 |  |  | $ | 351,916 |
Net income |  |  |
Actual | $ | 7,221 |  |  | $ | 6,214 |
Pro forma (unaudited) | $ | 7,221 |  |  | $ | 6,674 |
The pro forma disclosures in the table above include adjustments for, amortization of intangible assets, interest expense, tax expenses and the impact of pro forma adjustments and acquisition costs to reflect results that are more representative of the combined results of the transactions as if the Screw Products acquisition closed on January 1, 2017. This pro forma information utilizes certain estimates, is presented for illustrative purposes only and may not be indicative of the results of operation that would have actually occurred. 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 events that may occur after the acquisition, such as anticipated cost savings from operating synergies.

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- Definition Tabular disclosure of the nature and amount of any material, nonrecurring adjustments directly attributable to the business combination(s) included in the reported pro forma revenue and earnings (supplemental pro forma information). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(4) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition Tabular disclosure of finite-lived and indefinite-lived intangible assets acquired as part of a business combination. + References No definition available. + Details
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