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Consolidated Statements of Comprehensive Loss - USD ($)
12 Months Ended
Dec. 25, 2021
Dec. 26, 2020
Dec. 28, 2019
Income Statement [Abstract]      
Net loss $ (13,468,371) $ (4,530,925) $ (29,374,222)
Other comprehensive (loss) income, net of tax:      
Foreign currency translation adjustments (51,736) (67,852) (206,580)
Unrealized holding (loss) gain on marketable securities (17,113) (183,870) 446,533
Reclassifications of loss in net loss on marketable securities (1,234) (21,028) (37,356)
Total other comprehensive (loss) income, net of tax (70,083) (272,750) 202,597
Comprehensive loss (13,538,454) (4,803,675) (29,171,625)
Comprehensive loss (income) attributable to the noncontrolling interest 35,498 119,813 (132,030)
Comprehensive loss attributable to Kopin Corporation $ (13,502,956) $ (4,683,862) $ (29,303,655)