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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 |  |  |  |  |

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