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Note 21 - Quarterly Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2019
Notes Tables |
Quarterly Financial Information [Table Text Block] |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |  |  | Total |
For the Year Ended December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 62,643 |  |  | $ | 69,203 |  |  | $ | 75,226 |  |  | $ | 72,245 |  |  | $ | 279,317 |
Gross profit (1) |  |  | 6,571 |  |  |  | 8,218 |  |  |  | 15,475 |  |  |  | 16,920 |  |  |  | 47,184 |
Operating income |  |  | 2,324 |  |  |  | 3,513 |  |  |  | 10,575 |  |  |  | 12,277 |  |  |  | 28,689 |
Net income (2) |  |  | 2,165 |  |  |  | 2,974 |  |  |  | 10,747 |  |  |  | 12,016 |  |  |  | 27,902 |
Income per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.22 |  |  | $ | 0.31 |  |  | $ | 1.10 |  |  | $ | 1.23 |  |  | $ | 2.86 |
Diluted |  | $ | 0.22 |  |  | $ | 0.31 |  |  | $ | 1.10 |  |  | $ | 1.22 |  |  | $ | 2.85 |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |  |  | Total |
For the Year Ended December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 33,365 |  |  | $ | 28,785 |  |  | $ | 52,455 |  |  | $ | 57,544 |  |  | $ | 172,149 |
Gross profit (loss) |  |  | 1,348 |  |  |  | (1,238 | ) |  |  | 5,203 |  |  |  | 6,783 |  |  |  | 12,096 |
Operating income (loss) (3) |  |  | (2,342 | ) |  |  | (5,827 | ) |  |  | 2,497 |  |  |  | 2,701 |  |  |  | (2,971 | )
Net income (loss) (4) |  |  | (1,951 | ) |  |  | (5,686 | ) |  |  | 27,801 |  |  |  | 148 |  |  |  | 20,312 |
Income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | (0.20 | ) |  | $ | (0.59 | ) |  | $ | 2.86 |  |  | $ | 0.02 |  |  | $ | 2.09 |
Diluted |  | $ | (0.20 | ) |  | $ | (0.59 | ) |  | $ | 2.86 |  |  | $ | 0.02 |  |  | $ | 2.09 |

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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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