CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS Statement - USD ($)	12 Months Ended
Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (29,374,222)	$ (34,482,492)	$ (25,380,115)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(206,580)	(1,912,427)	1,921,655
Unrealized holding gain (loss) on marketable securities	446,533	(264,949)	148,520
Reclassifications of (loss) gain in net loss on marketable securities	(37,356)	49,525	(6,376)
Other comprehensive income (loss), net of tax	202,597	(2,127,851)	2,063,799
Comprehensive loss	(29,171,625)	(36,610,343)	(23,316,316)
Comprehensive (income) loss attributable to the noncontrolling interest	(132,030)	66,609	69,642
Comprehensive loss attributable to Kopin Corporation	$ (29,303,655)	$ (36,543,734)	$ (23,246,674)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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