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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) | Total | Common Stock | Additional Paid-in Capital | Treasury Stock | Accumulated Other Comprehensive Income (Loss) | Accumulated Deficit | Total Kopin Corporation Stockholders' Equity | Noncontrolling Interest
--- | --- | --- | --- | --- | --- | --- | --- | ---
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures |  | 1,170,847 |  |  |  |  |  |
Beginning Balance (in shares) at Dec. 31, 2016 |  | 76,640,943 |  |  |  |  |  |
Beginning Balance at Dec. 31, 2016 | $ 74,219,643 | $ 766,409 | $ 327,323,162 | $ (42,741,551) | $ 1,570,971 | $ (214,177,388) | $ 72,741,603 | $ 1,478,040
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Vesting of restricted stock |  | $ 11,708 | (11,708) |  |  |  |  |
Stock-based compensation expense | 3,375,330 |  | 3,375,330 |  |  |  | 3,375,330 |
Other comprehensive income (loss) | 2,063,799 |  |  |  | 1,993,808 |  | 1,993,808 | 69,991
Restricted stock for tax withholding obligations (in shares) |  | (239,752) |  |  |  |  |  |
Restricted stock for tax withholding obligations | (771,323) | $ (2,397) | (768,926) |  |  |  | (771,323) |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 791,737 |  |  |  |  |  |  | 791,737
Sale of unregistered stock | (24,664,250) |  |  | (25,502,882) |  | (838,632) | (24,664,250) |
Net income (loss) | (25,380,115) |  |  |  |  | (25,240,482) | (25,240,482) | (139,633)
Ending Balance (in shares) at Dec. 30, 2017 |  | 77,572,038 |  |  |  |  |  |
Ending Balance at Dec. 30, 2017 | 77,379,847 | $ 775,720 | 329,917,858 | (17,238,669) | 3,564,779 | (240,256,502) | 76,763,186 | 616,661
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures |  | 1,093,000 |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Vesting of restricted stock |  | $ 10,930 | (10,930) |  |  |  |  |
Stock-based compensation expense | 4,791,054 |  | 4,791,054 |  |  |  | 4,791,054 |
Other comprehensive income (loss) | (2,127,851) |  |  |  | (2,010,192) |  | (2,010,192) | (117,659)
Restricted stock for tax withholding obligations (in shares) |  | (142,972) |  |  |  |  |  |
Restricted stock for tax withholding obligations | (208,015) | $ (1,430) | (206,585) |  |  |  | (208,015) |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 699,105 |  |  |  |  |  |  | 699,105
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | 3,059,383 |  |  |  |  | 3,059,383 | 3,059,383 |
Net income (loss) | (34,482,492) |  |  |  |  | (34,533,542) | (34,533,542) | 51,050
Ending Balance (in shares) at Dec. 29, 2018 |  | 78,522,066 |  |  |  |  |  |
Ending Balance at Dec. 29, 2018 | 47,712,821 | $ 785,220 | 334,491,397 | (17,238,669) | 1,554,587 | (271,730,661) | 47,861,874 | (149,053)
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures |  | 634,511 |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Vesting of restricted stock |  | $ 6,345 | (6,345) |  |  |  |  |
Stock-based compensation expense | 2,057,400 |  | 2,057,400 |  |  |  | 2,057,400 |
Other comprehensive income (loss) | 202,597 |  |  |  | 202,597 |  |  |
Restricted stock for tax withholding obligations (in shares) |  | (86,086) |  |  |  |  |  |
Restricted stock for tax withholding obligations | (45,513) | $ (861) | (44,652) |  |  |  | (45,513) |
Stock Issued During Period, Shares, New Issues |  | 7,979,181 |  |  |  |  |  |
Stock Issued During Period, Value, New Issues |  | $ 79,792 | 7,958,737 |  |  |  | 8,038,529 |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 8,038,529 |  |  |  |  |  |  |
Net income (loss) | (29,374,222) |  |  |  |  | (29,506,252) | (29,506,252) | 132,030
Ending Balance (in shares) at Dec. 28, 2019 |  | 87,049,672 |  |  |  |  |  |
Ending Balance at Dec. 28, 2019 | $ 28,591,612 | $ 870,496 | $ 344,456,537 | $ (17,238,669) | $ 1,757,184 | $ (301,236,913) | $ 28,608,635 | $ (17,023)

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