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Segments and Disaggregation of Revenue (Percentage of Net Revenues by Geographies) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 7,741,000	$ 5,126,000	$ 5,944,000	$ 5,654,000	$ 11,397,000	$ 6,139,000	$ 5,927,000	$ 4,378,000	$ 24,465,005	$ 27,841,490	$ 22,642,566
Percent of Total									100.00%	100.00%	100.00%
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 14,436,000	$ 16,540,000	$ 9,237,000
Percent of Total									59.00%	59.00%	41.00%
Others
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 123,000	$ 86,000	$ 41,000
Percent of Total									1.00%	0.00%	0.00%
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 14,559,000	$ 16,626,000	$ 9,278,000
Percent of Total									60.00%	60.00%	41.00%
Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 6,916,000	$ 5,406,000	$ 9,849,000
Percent of Total									28.00%	19.00%	43.00%
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 2,948,000	$ 5,810,000	$ 3,516,000
Percent of Total									12.00%	21.00%	16.00%
Others [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 42,000
Percent of Total									0.00%
Kopin [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 16,981,000	$ 15,942,000	$ 18,733,000
Percent of Total									69.00%	57.00%	82.00%
Kopin [Member] | UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 10,799,000	$ 10,056,000	$ 8,847,000
Percent of Total									44.00%	36.00%	39.00%
Kopin [Member] | Others
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 49,000	$ 24,000	$ 41,000
Percent of Total									0.00%	0.00%	0.00%
Kopin [Member] | Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 10,848,000	$ 10,080,000	$ 8,887,000
Percent of Total									44.00%	36.00%	39.00%
Kopin [Member] | Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 4,932,000	$ 4,006,000	$ 7,588,000
Percent of Total									20.00%	14.00%	33.00%
Kopin [Member] | Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 1,194,000	$ 1,856,000	$ 2,258,000
Percent of Total									5.00%	7.00%	10.00%
Kopin [Member] | Others [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 7,000
Percent of Total									0.00%
Industrial [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 7,484,000	$ 11,900,000	$ 3,909,000
Percent of Total									30.00%	43.00%	18.00%
Industrial [Member] | UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 3,637,000	$ 6,484,000	$ 390,000
Percent of Total									15.00%	23.00%	2.00%
Industrial [Member] | Others
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 74,000	$ 62,000	$ 0
Percent of Total									0.00%	0.00%	0.00%
Industrial [Member] | Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 3,712,000	$ 6,545,000	$ 390,000
Percent of Total									15.00%	24.00%	2.00%
Industrial [Member] | Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 1,984,000	$ 1,401,000	$ 2,260,000
Percent of Total									8.00%	5.00%	10.00%
Industrial [Member] | Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 1,754,000	$ 3,954,000	$ 1,258,000
Percent of Total									7.00%	14.00%	6.00%
Industrial [Member] | Others [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 35,000
Percent of Total									0.00%

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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