Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2015	Dec. 31, 2014	Dec. 25, 2013
Supplemental Cash Flow Information [Abstract]
Income taxes paid, net	$ 5,364	$ 3,802	$ 2,777
Interest paid	8,141	8,170	9,336
Noncash investing and financing activities:
Property acquisition payable	573	0	0
Accrued purchase of property	1,781	635	1,575
Issuance of common stock, pursuant to share-based compensation plans	4,551	1,030	1,937
Execution of capital leases	5,556	3,300	5,663
Treasury stock payable	$ 185	$ 152	$ 220