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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
 3 Months Ended
Mar. 26, 2022
Mar. 27, 2021
Revenues:    
Total revenues $ 11,578,422 $ 11,676,369
Expenses:    
Cost of product revenues 7,782,879 6,396,671
Research and development 5,408,613 3,563,300
Selling, general and administration 4,464,548 5,905,706
Total expenses 17,656,040 15,865,677
Loss from operations (6,077,618) (4,189,308)
Other income (expense):    
Interest income 6,980 8,744
Other expense, net (1,141) (1,150)
Gain on investments 4,700,000
Foreign currency transaction gains 35,115 28,991
Total other income 4,740,954 36,585
Loss before provision for income taxes and net loss attributable to noncontrolling interest (1,336,664) (4,152,723)
Tax provision (36,000) (33,000)
Net loss (1,372,664) (4,185,723)
Net loss attributable to the noncontrolling interest 23 39,485
Net loss attributable to Kopin Corporation $ (1,372,641) $ (4,146,238)
Net loss per share    
Basic and diluted $ (0.02) $ (0.05)
Weighted average number of common shares outstanding    
Basic and diluted 90,121,226 87,378,288
Net Product Revenues [Member]    
Revenues:    
Total revenues $ 6,507,528 $ 7,568,845
Research and Development Revenues [Member]    
Revenues:    
Total revenues 4,908,033 3,560,743
Other Revenues [Member]    
Revenues:    
Total revenues $ 162,861 $ 546,781