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Quarterly Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Quarterly Financial Information | Earnings per share amounts are computed independently each quarter. Accordingly, the sum of each quarter’s per share amount may not equal the total per share amount for the respective year.
|  | Quarter |
(table only in thousands, except per share data) |  | First |  |  | Second |  |  | Third |  |  | Fourth |
Year ended December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 86,011 |  |  | $ | 81,179 |  |  | $ | 85,266 |  |  | $ | 89,413 |
Gross profit |  |  | 28,432 |  |  |  | 26,846 |  |  |  | 28,777 |  |  |  | 30,044 |
Net income |  |  | 1,864 |  |  |  | 5,515 |  |  |  | 1,931 |  |  |  | 8,397 |
Basic earnings per share |  | $ | 0.05 |  |  | $ | 0.16 |  |  | $ | 0.06 |  |  | $ | 0.24 |
Diluted earnings per share |  | $ | 0.05 |  |  | $ | 0.15 |  |  | $ | 0.05 |  |  | $ | 0.24 |
Year ended December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 74,139 |  |  | $ | 81,089 |  |  | $ | 88,256 |  |  | $ | 93,854 |
Gross profit |  |  | 25,561 |  |  |  | 27,525 |  |  |  | 28,674 |  |  |  | 29,777 |
Net income (loss) |  |  | 5,763 |  |  |  | (901 | ) |  |  | (12,915 | ) |  |  | 931 |
Basic earnings (loss) per share |  | $ | 0.17 |  |  | $ | (0.03 | ) |  | $ | (0.37 | ) |  | $ | 0.03 |
Diluted earnings (loss) per share |  | $ | 0.17 |  |  | $ | (0.03 | ) |  | $ | (0.37 | ) |  | $ | 0.03 |

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118952077&loc=d3e1280-108306 + Details
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