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SEGMENT INFORMATION (Schedule of Operating Income By Segment) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues $ 84,556 $ 77,973 $ 75,359  
Cost of revenues 68,628 66,703 66,924  
Gross profit 15,928 11,270 8,435  
Research and development 479 517 185  
Selling and marketing 5,629 5,147 4,369  
General and administrative 9,970 8,354 7,612  
Other expenses (income) (90) (468) 315  
Restructuring Charges 1,715 1,755 0  
Operating income (loss) (1,775) (4,035) (4,046)  
Financial expense, net 127 540 770  
Loss before tax benefits (1,648) (4,575) (4,816)  
Intersegment Revenues [Member]        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Research and development   (47)    
Selling and marketing   (89)    
General and administrative   (191)    
Other expenses (income)   896 0  
Elimination of inter-company sales [Member]        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues (3,733) (3,916) (3,141)  
Cost of revenues (3,285) (3,685) (2,937)  
Gross profit (448) (231) (204)  
Research and development (74)   0  
Selling and marketing (54)     $ 0
General and administrative (2)   0  
Other expenses (income) 1,547      
Restructuring Charges 0 0    
Operating income (loss) (1,977) (800) (204)  
OEM of Heat Transfer Solutions and Aviation Accessories [Member]        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 21,844 25,977 23,125  
Cost of revenues 18,778 24,044 21,703  
Gross profit 3,066 1,933 1,422  
Research and development 193 122 (3)  
Selling and marketing 1,936 2,040 1,429  
General and administrative 3,226 3,128 2,183  
Other expenses (income) (1,566) (913) 0  
Restructuring Charges 975 1,338    
Operating income (loss) (1,698) (3,782) (2,187)  
MRO Services for heat transfer components and OEM of heat transfer solutions [Member]        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 24,796 18,846 20,640  
Cost of revenues 20,750 16,922 17,885  
Gross profit 4,046 1,924 2,755  
Research and development 54 80 (2)  
Selling and marketing 926 1,015 1,152  
General and administrative 2,462 1,855 2,054  
Other expenses (income) (52) 0 (21)  
Restructuring Charges 618 386    
Operating income (loss) 38 (1,412) (470)  
MRO services for Aviation Components and Lease [Member]        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 35,879 33,232 31,189  
Cost of revenues 28,890 26,444 26,961  
Gross profit 6,989 6,788 4,228  
Research and development 286 202 7  
Selling and marketing 2,383 1,961 1,527  
General and administrative 3,686 3,004 2,732  
Other expenses (income) (18) (432) 0  
Restructuring Charges 0 0    
Operating income (loss) 652 2,053 (38)  
Overhaul and coating of jet engine components [Member]        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 5,770 3,834 3,546  
Cost of revenues 3,495 2,978 3,312  
Gross profit 2,275 856 234  
Research and development 19 160 183  
Selling and marketing 330 220 261  
General and administrative 594 558 643  
Other expenses (income) 0 (19) (294)  
Restructuring Charges 122 31    
Operating income (loss) $ 1,210 $ (94) $ (1,147)