XML 77 R62.htm IDEA: XBRL DOCUMENT v3.20.4
Selected Statement of Operations Data (Details) - Schedule of revenues classified by product lines - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Product Information [Line Items]      
Revenues $ 23,374 $ 22,664 $ 18,135
Product line “A” [Member]      
Product Information [Line Items]      
Revenues 11,986 13,591 14,923
Product line “B” [Member]      
Product Information [Line Items]      
Revenues 2,642 2,956 3,212
Product line "C" [Member]      
Product Information [Line Items]      
Revenues $ 8,746 $ 6,117