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Consolidated Statements of Stockholders' Equity - USD ($)
Common Stock [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total Kopin Corporation Stockholders Equity [Member]
Noncontrolling Interest [Member]
Total
Beginning balance, value at Dec. 30, 2017 $ 775,720 $ 329,917,858 $ (17,238,669) $ 3,564,779 $ (240,256,502) $ 76,763,186 $ 616,661 $ 77,379,847
Balance, shares at Dec. 30, 2017 77,572,038              
Vesting of restricted stock $ 10,930 (10,930)
Vesting of restricted stock, shares 1,093,000              
Stock-based compensation expense 4,791,054 4,791,054 4,791,054
Other comprehensive loss (2,010,192) (2,010,192) (117,659) (2,127,851)
Restricted stock for tax withholding obligations $ (1,430) (206,585) (208,015) (208,015)
Restricted stock for tax withholding obligations, shares (142,972)              
Distribution to noncontrolling interest holder (699,105) (699,105)
Adoption of accounting standard 3,059,383 3,059,383 3,059,383
Net loss (34,533,542) (34,533,542) 51,050 (34,482,492)
Ending balance, value at Dec. 29, 2018 $ 785,220 334,491,397 (17,238,669) 1,554,587 (271,730,661) 47,861,874 (149,053) 47,712,821
Balance, shares at Dec. 29, 2018 78,522,066              
Vesting of restricted stock $ 6,345 (6,345)
Vesting of restricted stock, shares 634,511              
Stock-based compensation expense 2,057,400 2,057,400 2,057,400
Other comprehensive loss 202,597 202,597 202,597
Restricted stock for tax withholding obligations $ (861) (44,652) (45,513) (45,513)
Restricted stock for tax withholding obligations, shares (86,086)              
Sale of registered stock, net of costs $ 79,792 7,958,737 8,038,529 8,038,529
Sale of registered stock, shares 7,979,181              
Net loss (29,506,252) (29,506,252) 132,030 (29,374,222)
Ending balance, value at Dec. 28, 2019 $ 870,496 344,456,537 (17,238,669) 1,757,184 (301,236,913) 28,608,635 (17,023) 28,591,612
Balance, shares at Dec. 28, 2019 87,049,672              
Vesting of restricted stock $ 10,387 (10,387)
Vesting of restricted stock, shares 1,038,655              
Stock-based compensation expense 821,122 821,122 821,122
Other comprehensive loss (272,750) (272,750) (272,750)
Restricted stock for tax withholding obligations $ (808) (139,118) (139,926) (139,926)
Restricted stock for tax withholding obligations, shares (80,792)              
Sale of treasury stock, net of costs (3,615,261) 7,444,723 3,829,462 3,829,462
Net loss (4,411,112) (4,411,112) (119,813) (4,530,925)
Ending balance, value at Dec. 26, 2020 $ 880,075 $ 341,512,893 $ (9,793,946) $ 1,484,434 $ (305,648,025) $ 28,435,431 $ (136,836) $ 28,298,595
Balance, shares at Dec. 26, 2020 88,007,535