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Share Repurchase Plan (Details Narrative) - USD ($)
$ in Thousands
12 Months Ended
Feb. 13, 2015
Dec. 30, 2017
Dec. 31, 2016
Dec. 26, 2015
Equity [Abstract]        
Stock repurchase program, authorized amount $ 300,000      
Stock repurchase program, expiration date Dec. 31, 2016      
Stock issued for repurchase program, shares   1,474,092 2,152,716 3,148,901
Stock issued for repurchase program, value   $ 74,523 $ 93,233 $ 131,413