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Condensed Consolidated Statement of Equity (Unaudited) - USD ($)
$ in Thousands
Total
Common Stock [Member]
Treasury Stock [Member]
Warrants [Member]
Additional Paid-in-Capital [Member]
Accumulated Deficit [Member]
Non-Controlling Interest [Member]
Beginning Balance at Dec. 28, 2014 $ 156,325 $ 298 $ (10,246) $ 909 $ 391,972 $ (226,874) $ 266
Beginning Balance, Common Shares at Dec. 28, 2014   28,934,700          
Net income 4,451         4,393 58
Exercise of stock options 4,320 $ 5     4,315    
Exercise of stock options, Shares   526,333          
Excess tax benefits associated with exercise of stock options 334       334    
Repurchases of common stock (27,030)   (27,030)        
Repurchases of common stock, Shares   (2,094,721)          
Distributions to non- controlling interest (85)           (85)
Contributions from non-controlling interest 580           580
Amortization of stock-based compensation 1,795       1,795    
Ending Balance at Sep. 27, 2015 140,690 $ 303 (37,276) 909 398,416 (222,481) 819
Ending Balance, Common Shares at Sep. 27, 2015   27,366,312          
Beginning Balance at Dec. 27, 2015 $ 130,213 $ 303 (50,000) 909 399,458 (221,246) 789
Beginning Balance, Common Shares at Dec. 27, 2015 26,304,261 26,304,261          
Net income $ 6,409         6,256 153
Exercise of stock options $ 5,419 $ 5     5,414    
Exercise of stock options, Shares 494,000 493,745          
Common stock issued for stock-based compensation plans, Shares   18,036          
Excess tax deficiencies associated with exercise of stock options $ (605)       (605)    
Repurchases of common stock $ (20,447)   (20,447)        
Repurchases of common stock, Shares (1,574,316) (1,574,316)          
Distributions to non- controlling interest $ (249)           (249)
Contributions from non-controlling interest 74           74
Amortization of stock-based compensation 2,266       2,266    
Ending Balance at Sep. 25, 2016 $ 123,080 $ 308 $ (70,447) $ 909 $ 406,533 $ (214,990) $ 767
Ending Balance, Common Shares at Sep. 25, 2016 25,241,726 25,241,726