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Note 20 - Quarterly Financial Information (Unaudited) - Summarized Quarterly Financial Data (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Net sales $ 91,237 $ 96,970 $ 94,343 $ 71,242 $ 56,343 $ 50,723 $ 50,655 $ 48,599 $ 353,792 $ 206,320 $ 179,373
Gross profit 23,279 25,523 24,324 17,134 13,075 12,016 13,414 12,609 $ 90,260 $ 51,114 $ 44,684
Net income $ 8,462 $ 19,540 $ 8,929 $ 4,858 $ 3,219 $ 3,789 $ 4,715 $ 4,163      
Basic net income per share (in dollars per share) $ 1.12 $ 2.58 $ 1.18 $ 0.64 $ 0.43 $ 0.50 $ 0.63 $ 0.55 $ 5.52 $ 2.11 $ 1.79
Diluted net income per share (in dollars per share) $ 1.10 $ 2.56 $ 1.17 $ 0.64 $ 0.42 $ 0.50 $ 0.62 $ 0.55 $ 5.45 $ 2.09 $ 1.77