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CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS - USD ($)	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Revenues:
Revenues	$ 5,542,925	$ 5,653,620
Expenses:
Research and development	4,966,716	4,451,653
Selling, general and administration	6,282,803	6,931,410
Total expenses	17,126,596	15,445,254
Loss from operations	(11,583,671)	(9,791,634)
Other income:
Interest income	163,361	159,851
Other (expense) income	(109,735)	1,101,255
Foreign currency transaction gains	236,135	208,608
Gain on investments	0	2,849,816
Total other income and expense	289,761	4,319,530
Loss before provision for income taxes and net income attributable to noncontrolling interest	(11,293,910)	(5,472,104)
Provision for income taxes	(26,000)	0
Net loss	(11,319,910)	(5,472,104)
Net income attributable to noncontrolling interest	(11,017)	(64,174)
Net loss attributable to Kopin Corporation	$ (11,330,927)	$ (5,536,278)
Net loss per share
Basic and diluted (usd per share)	$ (0.15)	$ (0.08)
Weighted average number of common shares outstanding
Basic and diluted (in shares)	74,968,981	73,078,344
Product [Member]
Revenues:
Revenues	$ 4,613,856	$ 5,044,809
Expenses:
Cost of Goods and Services Sold	5,877,077	4,062,191
Service [Member]
Revenues:
Revenues	$ 929,069	$ 608,811

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