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SCHEDULE OF SEGMENT REPORTING INFORMATION, BY SEGMENT (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Revenue from External Customer [Line Items]
Total Revenues	$ 8,815	$ 9,110	$ 16,693	$ 14,653
Military [Member]
Revenue from External Customer [Line Items]
Total Revenues	4,490	1,797	8,003	3,238
Industrial [Member]
Revenue from External Customer [Line Items]
Total Revenues	1,396	2,135	3,579	4,638
Consumer [Member]
Revenue from External Customer [Line Items]
Total Revenues	232	503	453	1,149
Research and Development [Member]
Revenue from External Customer [Line Items]
Total Revenues	1,772	455	3,733	1,199
License Royalties And Other [Member]
Revenue from External Customer [Line Items]
Total Revenues	$ 925	$ 4,220	$ 925	$ 4,429

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