Stock Compensation Plans (Details 3) - $ / shares	12 Months Ended
	Dec. 26, 2015	Dec. 27, 2014	Dec. 28, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, Outstanding at beginning of year	344,375	639,950	692,875
Options, Issued during year	0	25,000	157,500
Options, Canceled or expired	(500)	(19,000)	(27,000)
Options, Exercised during year	(156,250)	(301,575)	(183,425)
Options, Outstanding at end of year	187,625	344,375	639,950
Options, Exercisable at end of year	133,250	158,875	198,825
Weighted-average fair value of options granted during the year	$ 0	$ 3.06	$ 2.21
Weighted Average Exercise Price, Issued during year	0	11.86
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant Date Fair Value, Outstanding at beginning of year	11.86	6.07	6.07
Weighted Average Exercise Price, Issued during year			6.06
Weighted Average Exercise Price, Exercised during year	11.86	6.07	6.07
Weighted Average Grant Date Fair Value, Outstanding at end of year	11.86	11.86	6.07
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant Date Fair Value, Outstanding at beginning of year	2.56	0.64	0.64
Weighted Average Exercise Price, Issued during year			5.85
Weighted Average Exercise Price, Exercised during year	2.56	0.64	0.64
Weighted Average Grant Date Fair Value, Outstanding at end of year	$ 5.28	$ 2.56	$ 0.64