Annual report pursuant to Section 13 and 15(d)

Unaudited Quarterly Financial Information (Details)

v3.6.0.2
Unaudited Quarterly Financial Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Oct. 01, 2016
Jul. 02, 2016
Apr. 02, 2016
Jan. 02, 2016
Sep. 26, 2015
Jun. 27, 2015
Mar. 28, 2015
Dec. 31, 2016
Jan. 02, 2016
Dec. 27, 2014
Unaudited Quarterly Financial Information [Abstract]                      
Net sales $ 49,865 $ 45,232 $ 50,809 $ 51,028 $ 44,289 $ 48,036 $ 54,016 $ 54,386 $ 196,934 $ 200,727 $ 227,673
Gross profit 17,315 15,540 18,953 19,541 15,794 18,500 21,404 21,394 71,349 77,093 93,892
Operating income 4,886 7,243 10,444 11,886 7,671 11,037 14,075 14,108 34,459 46,891 64,071
Income before income taxes 4,555 7,557 10,594 12,196 7,356 12,543 13,974 15,358 34,901 49,230 65,742
Net income $ 3,118 $ 4,989 $ 6,990 $ 8,208 $ 5,103 $ 8,410 $ 9,248 $ 10,377 $ 23,304 $ 33,138 $ 43,775
Basic net income per common share $ 0.12 $ 0.19 $ 0.26 $ 0.31 $ 0.19 $ 0.32 $ 0.35 $ 0.39 $ 0.87 $ 1.24 $ 1.65
Diluted net income per common share $ 0.12 $ 0.19 $ 0.26 $ 0.31 $ 0.19 $ 0.32 $ 0.35 $ 0.39 $ 0.87 $ 1.24 $ 1.65