Quarterly report pursuant to Section 13 or 15(d)

SCHEDULE OF DISAGGREGATED NET SALES (Details)

v3.22.1
SCHEDULE OF DISAGGREGATED NET SALES (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]    
Total net sales $ 3,709 $ 3,290
Telecommunications [Member]    
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]    
Total net sales 3,670 3,053
Government And Military [Member]    
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]    
Total net sales 17 31
Marine [Member]    
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]    
Total net sales 14
Other [Member]    
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]    
Total net sales 8 206
DC Power Systems [Member]    
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]    
Total net sales 3,617 3,155
Engineering And Tech Support Services [Member]    
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]    
Total net sales 44 28
Accessories [Member]    
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]    
Total net sales $ 48 $ 107