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Consolidated Statements of Equity - USD ($)
$ in Thousands
Total
Cumulative Effect, Period of Adoption, Adjustment [Member]
Revision of Prior Period, Adjustment [Member]
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in-Capital [Member]
Accumulated Deficit [Member]
Accumulated Deficit [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Revision of Prior Period, Adjustment [Member]
Non-Controlling Interest [Member]
Beginning balance at Dec. 31, 2017 $ 117,238   $ 318 $ (85,262) $ 421,657 $ (219,990)   $ 515
Beginning balance, common shares at Dec. 31, 2017     25,000,000          
Net income (loss) (8,549)         (8,878)   329
Cumulative impact (ASU 2014-09 (Topic 606) [Member]) at Dec. 31, 2017   $ (690)         $ (690)  
Shares issued under equity compensation plan 8,244   $ 12   8,232      
Shares issued under equity compensation plan, shares     1,112,000          
Exercise of stock warrants $ (194)     (194)        
Exercise of stock warrants, shares (993,000)   (16,000)          
Repurchases of common stock $ (22,916)     (22,916)        
Repurchases of common stock, shares     (1,953,000)          
Distributions to non-controlling interest (580)             (580)
Contributions from non-controlling interest 98             98
Stock-based compensation expense 2,882       2,882      
Ending balance at Dec. 30, 2018 95,533   $ 330 (108,372) 432,771 (229,558)   362
Ending balance, common shares at Dec. 30, 2018     24,143,000          
Net income (loss) (23,585)         (23,992)   407
Cumulative impact (ASU 2016-02 (Topic 842) [Member]) at Dec. 30, 2018   (531)         (531)  
Shares issued under equity compensation plan $ 173   $ 1   172      
Shares issued under equity compensation plan, shares     159,000          
Exercise of stock warrants, shares (22,000)              
Treasury shares used for stock-basedplans $ (91)     (91)        
Treasury shares used for stock-based plans, shares     (16,000)          
Repurchases of common stock (4,217)     (4,217)        
Repurchases of common stock, shares     (648,000)          
Distributions to non-controlling interest (523)             (523)
Contributions from non-controlling interest 75             75
Stock-based compensation expense 2,335       2,335      
Ending balance at Dec. 29, 2019 $ 69,169   $ 331 (112,680) 435,278 (254,081)   321
Ending balance, common shares at Dec. 29, 2019 23,638,000   23,638,000          
Net income (loss) $ (65,672)         (65,391)   (281)
Cumulative impact at Dec. 29, 2019 (254,081)              
Cumulative impact (ASU 2016-13 (Topic 326) [Member]) at Dec. 29, 2019   $ (5)         $ (5)  
Shares issued under equity compensation plan     $ 7   (7)      
Shares issued under equity compensation plan, shares     702,000          
Shares issued for proxy-related expenses 389   $ 1   388      
Shares issued for proxy-related expenses, shares     130,000          
Treasury shares used for stock-basedplans (586)     (586)        
Treasury shares used for stock-based plans, shares     (147,000)          
Distributions to non-controlling interest (458)             (458)
Contributions from non-controlling interest 143             143
Stock-based compensation expense 2,515       2,515      
Ending balance at Dec. 27, 2020 $ 5,495   $ 339 $ (113,266) $ 438,174 $ (319,477)   $ (275)
Ending balance, common shares at Dec. 27, 2020 24,323,000   24,323,000