Quarterly report pursuant to Section 13 or 15(d)

Net Income Per Share (Computation of Basic and Diluted Earnings Per Share)(Details)

v3.8.0.1
Net Income Per Share (Computation of Basic and Diluted Earnings Per Share)(Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 24, 2017
Sep. 25, 2016
Sep. 24, 2017
Sep. 25, 2016
BASIC        
Net income $ 3,195 $ 4,599 $ 13,074 $ 14,911
Weighted-average common shares outstanding 16,905,705 16,803,188 16,886,743 16,625,008
Basic net income per common share $ 0.19 $ 0.27 $ 0.77 $ 0.90
DILUTED        
Net income $ 3,195 $ 4,599 $ 13,074 $ 14,911
Weighted-average common shares outstanding 16,905,705 16,803,188 16,886,743 16,625,008
Dilutive effect of stock options and restricted stock units 81,089 149,905 111,570 236,659
Weighted-average of diluted shares 16,986,794 16,953,093 16,998,313 16,861,667
Diluted net income per common share $ 0.19 $ 0.27 $ 0.77 $ 0.88