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Segments and Disaggregation of Revenue (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 28, 2019
Sep. 28, 2019
Jun. 29, 2019
Mar. 30, 2019
Dec. 29, 2018
Sep. 29, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Segment Reporting Information [Line Items]                      
Revenues $ (8,727,000) $ (6,139,000) $ (9,110,000) $ (5,543,000) $ (7,741,000) $ (5,126,000) $ (5,944,000) $ (5,654,000) $ (29,518,809) $ (24,465,005) $ (27,841,490)
Property, Plant and Equipment [Member]                      
Segment Reporting Information [Line Items]                      
Long lived assets 1,473,000       2,599,000       1,473,000 2,599,000  
UNITED STATES | Property, Plant and Equipment [Member]                      
Segment Reporting Information [Line Items]                      
Long lived assets 1,233,000       2,101,000       1,233,000 2,101,000  
UNITED KINGDOM | Property, Plant and Equipment [Member]                      
Segment Reporting Information [Line Items]                      
Long lived assets 177,000       197,000       177,000 197,000  
CHINA | Property, Plant and Equipment [Member]                      
Segment Reporting Information [Line Items]                      
Long lived assets 37,000       251,000       37,000 251,000  
JAPAN | Property, Plant and Equipment [Member]                      
Segment Reporting Information [Line Items]                      
Long lived assets $ 26,000       $ 50,000       26,000 50,000  
Kopin [Member]                      
Segment Reporting Information [Line Items]                      
Revenues                 (29,519,000) (24,465,000) (27,841,000)
Kopin [Member] | Industrial Customers [Member]                      
Segment Reporting Information [Line Items]                      
Revenues                 (9,717,000) (6,066,000) (5,478,000)
Kopin [Member] | Consumer Customers [Member]                      
Segment Reporting Information [Line Items]                      
Revenues                 (1,777,000) (4,146,000) (4,406,000)
Kopin [Member] | Research and Development [Member]                      
Segment Reporting Information [Line Items]                      
Revenues                 (4,983,000) (5,254,000) (2,947,000)
Kopin [Member] | All Other Customers [Member]                      
Segment Reporting Information [Line Items]                      
Revenues                 (61,000) (275,000) (1,573,000)
Kopin [Member] | Military Customers in Total                      
Segment Reporting Information [Line Items]                      
Revenues                 (8,729,000) (8,724,000) (13,438,000)
Kopin [Member] | License and Royalties [Member]                      
Segment Reporting Information [Line Items]                      
Revenues                 (4,252,000) 0 0
Kopin [Member] | UNITED STATES                      
Segment Reporting Information [Line Items]                      
Revenues                 $ (14,946,000) $ (14,436,000) $ (16,540,000)