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SEGMENTS AND GEOGRAPHICAL INFORMATION (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jun. 25, 2016	Jul. 01, 2017	Jun. 25, 2016	Dec. 31, 2016	Dec. 26, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 5,927,469	$ 4,355,275	$ 10,305,597	$ 10,474,413
Net Income (Loss) Attributable to Parent	(7,331,971)	(3,194,102)	(15,190,410)	(10,127,562)
Total assets	101,633,856	101,215,000	101,633,856	101,215,000	$ 87,832,272	$ 2,729,000
Long-Lived Assets	3,709,000		3,709,000
Debt of Subsidiary, Not Assumed	$ 6,400,000	$ 6,200,000	$ 6,400,000	$ 6,200,000
Percentage of total revenue	100.00%	100.00%	100.00%	100.00%
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total revenue	49.00%	28.00%	49.00%	28.00%
Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total revenue	26.00%	59.00%	27.00%	55.00%
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total revenue	25.00%	13.00%	24.00%	17.00%
Kopin United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	$ 94,370,000	$ 99,593,000	$ 94,370,000	$ 99,593,000
Long-Lived Assets	3,545,000		3,545,000			$ 2,726,000
Industrial [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	7,264,000	1,622,000	7,264,000	1,622,000
Long-Lived Assets	164,000	3,000	164,000	3,000
Segment, Continuing Operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	5,927,000	4,355,000	10,306,000	10,474,000
Net Income (Loss) Attributable to Parent	(7,332,000)	(3,194,000)	(15,190,000)	(10,128,000)
Segment, Continuing Operations | Kopin United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	3,705,000	3,321,000	6,665,000	8,469,000
Net Income (Loss) Attributable to Parent	(7,141,000)	(3,140,000)	(15,052,000)	(9,727,000)
Segment, Continuing Operations | Industrial [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,222,000	1,034,000	3,641,000	2,005,000
Net Income (Loss) Attributable to Parent	$ (191,000)	$ (54,000)	$ (138,000)	$ (401,000)

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