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SCHEDULE OF SEGMENT REPORTING INFORMATION, BY SEGMENT (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 25, 2021	Sep. 26, 2020	Sep. 25, 2021	Sep. 26, 2020
Revenue from External Customer [Line Items]
Total Revenues	$ 10,887	$ 9,513	$ 32,469	$ 26,206
Defense [Member]
Revenue from External Customer [Line Items]
Total Revenues	3,483	4,769	12,257	12,772
Industrial [Member]
Revenue from External Customer [Line Items]
Total Revenues	2,724	1,650	7,394	5,229
Consumer [Member]
Revenue from External Customer [Line Items]
Total Revenues	384	68	1,318	521
Research and Development [Member]
Revenue from External Customer [Line Items]
Total Revenues	4,099	2,563	10,364	6,295
Product and Service, Other [Member]
Revenue from External Customer [Line Items]
Total Revenues	$ 197	$ 463	$ 1,136	$ 1,389

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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