Provision for Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015
Income before taxes:
United States of America (USA)	$ 15,517	$ 15,542	$ 15,674
Current
Federal	4,191	4,060	1,670
State	212	363	237
Current Income Tax Expense (Benefit)	4,403	4,423	1,907
Deferred
Federal	(2,441)	1,453	1,909
State	(506)	(1,827)	252
Deferred Income Tax Expense (Benefit)	(2,947)	(374)	2,161
Income Tax Expense (Benefit), Total	$ 1,456	$ 4,049	$ 4,068