Annual report pursuant to Section 13 and 15(d)

Unaudited Quarterly Financial Information (Details)

v3.10.0.1
Unaudited Quarterly Financial Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 29, 2018
Sep. 29, 2018
Jun. 30, 2018
Mar. 30, 2018
Dec. 30, 2017
Sep. 30, 2017
Jul. 01, 2017
Apr. 01, 2017
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Unaudited Quarterly Financial Information [Abstract]                      
Net sales $ 138,722 $ 135,837 $ 136,168 $ 97,318 $ 84,150 $ 88,001 $ 89,335 $ 81,353 $ 508,045 $ 342,839 $ 196,934
Gross profit 52,927 51,735 50,404 37,617 28,854 36,294 38,583 32,794 192,683 136,525 71,349
Operating income 22,052 19,246 17,003 17,253 7,604 17,402 20,701 15,784 75,554 61,491 34,459
Income before income taxes 17,032 14,250 9,220 15,893 5,523 15,978 10,904 15,139 56,395 47,544 34,901
Net income $ 16,424 $ 11,599 $ 6,796 $ 11,911 $ 2,768 $ 11,295 $ 7,284 $ 10,211 $ 46,730 $ 31,558 $ 23,304
Basic and diluted net income per common share $ 0.51 $ 0.36 $ 0.22 $ 0.40 $ 0.10 $ 0.42 $ 0.27 $ 0.38 $ 1.49 $ 1.17 $ 0.87