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Note 21 - Quarterly Financial Information (Unaudited) | 12 Months Ended
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Dec. 31, 2022
Notes to Financial Statements |
Quarterly Financial Information [Text Block] | 21. Quarterly Financial Information (Unaudited)
|  | 2022 |
|  | First |  |  | Second |  |  | Third |  |  | Fourth |
Net sales |  | $ | 102,601 |  |  | $ | 187,561 |  |  | $ | 166,100 |  |  | $ | 159,806 |
Gross profit |  | $ | 21,064 |  |  | $ | 51,233 |  |  | $ | 41,269 |  |  | $ | 37,890 |
Income (loss) before taxes |  | $ | (4,925 | ) |  | $ | 23,090 |  |  | $ | 16,175 |  |  | $ | 13,021 |
Net income (loss) |  | $ | (3,908 | ) |  | $ | 17,725 |  |  | $ | 13,280 |  |  | $ | 11,512 |
Basic net earnings (loss) per common share attributable to common shareholders |  | $ | (0.18 | ) |  | $ | 0.76 |  |  | $ | 0.57 |  |  | $ | 0.49 |
Earnings (loss) per common share assuming dilution attributable to common shareholders |  | $ | (0.18 | ) |  | $ | 0.75 |  |  | $ | 0.56 |  |  | $ | 0.49 |
Dividends per share |  | $ | 0.29 |  |  | $ | 0.29 |  |  | $ | 0.29 |  |  | $ | 0.29 |
|  | 2021 |
|  | First |  |  | Second |  |  | Third |  |  | Fourth |
Net sales |  | $ | 103,342 |  |  | $ | 157,530 |  |  | $ | 127,636 |  |  | $ | 152,945 |
Gross profit |  | $ | 26,252 |  |  | $ | 48,798 |  |  | $ | 30,635 |  |  | $ | 36,187 |
Income before taxes |  | $ | 665 |  |  | $ | 14,919 |  |  | $ | 8,234 |  |  | $ | 10,770 |
Net income |  | $ | 742 |  |  | $ | 14,103 |  |  | $ | 7,030 |  |  | $ | 8,816 |
Basic net earnings per common share attributable to common shareholders |  | $ | 0.03 |  |  | $ | 0.60 |  |  | $ | 0.30 |  |  | $ | 0.38 |
Earnings per common share assuming dilution attributable to common shareholders |  | $ | 0.03 |  |  | $ | 0.60 |  |  | $ | 0.30 |  |  | $ | 0.37 |
Dividends per share |  | $ | 0.29 |  |  | $ | 0.29 |  |  | $ | 0.29 |  |  | $ | 0.29 |
Due to the timing of issuance of shares, the sum of quarterly earnings per share may not equal the annual earnings per share.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI https://asc.fasb.org/topic&trid=2126967 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1B -URI https://asc.fasb.org/extlink&oid=126900988&loc=SL124452896-108306 + Details
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