Treasury Stock (Details Narrative) - USD ($) $ in Thousands		12 Months Ended
	Jul. 22, 2015	Dec. 31, 2016	Dec. 26, 2015	Apr. 21, 2015
Equity [Abstract]
Treasury stock, shares, retired	981,099	1,074,150	53,744
Stock repurchase program, authorized amount				$ 2,000
Treasury stock, retired, cost method, amount		$ 1,300	$ 100