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SCHEDULE OF SEGMENT REPORTING INFORMATION, BY SEGMENT (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 26, 2021	Jun. 27, 2020	Jun. 26, 2021	Jun. 27, 2020
Revenue from External Customer [Line Items]
Total Revenues	$ 9,905	$ 8,815	$ 21,582	$ 16,693
Defense [Member]
Revenue from External Customer [Line Items]
Total Revenues	3,779	4,490	8,772	8,003
Industrial [Member]
Revenue from External Customer [Line Items]
Total Revenues	2,629	1,396	4,671	3,579
Consumer [Member]
Revenue from External Customer [Line Items]
Total Revenues	400	232	934	453
Research and Development [Member]
Revenue from External Customer [Line Items]
Total Revenues	2,704	1,772	6,265	3,733
Product and Service, Other [Member]
Revenue from External Customer [Line Items]
Total Revenues	$ 393	$ 925	$ 940	$ 925

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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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