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Quarterly Results of Operations (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 28, 2019
Jun. 29, 2019
Mar. 30, 2019
Dec. 31, 2018
Sep. 29, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]                      
Total net sales $ 105,139 $ 94,999 $ 96,329 $ 114,039 $ 121,121 $ 114,945 $ 128,411 $ 131,159 $ 410,506 $ 495,635 $ 522,256
Gross profit 24,782 19,867 22,302 32,597 33,848 28,092 36,599 35,820 99,548 134,358 154,008
Net income $ 8,208 $ 4,817 $ 6,233 $ 13,033 $ 12,274 $ 9,206 $ 15,189 $ 14,264 $ 32,291 $ 50,933 $ 52,142
Basic earnings per share $ 0.47 $ 0.28 $ 0.36 $ 0.75 $ 0.70 $ 0.53 $ 0.87 $ 0.82 $ 1.85 $ 2.92 $ 2.94
Diluted earnings per share $ 0.46 $ 0.27 $ 0.35 $ 0.74 $ 0.69 $ 0.52 $ 0.86 $ 0.81 $ 1.82 $ 2.88 $ 2.91