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SEGMENT INFORMATION (Schedule of Operating Income By Segment) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues $ 93,178 $ 106,527 $ 95,794
Cost of revenues 84,787 86,083 76,757
Gross profit 8,391 20,444 19,037
Research and development 553 731 1,140
Selling and marketing 4,913 4,974 3,876
General and administrative 8,559 9,409 10,023
Other expenses (income) (4) 53 (138)
Operating income (loss) (5,630) 5,277 4,136
Financial expense, net 102 338 154
Income before taxes on income (5,732) 4,939 3,982
Sale of Products and Services [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues 93,178 106,527 95,794
Intersegment Revenues [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues
Elimination of inter-company sales [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues (5,057) (3,536) (5,729)
Cost of revenues (5,343) (3,620) (5,744)
Gross profit 286 84 15
Research and development
Selling and marketing
General and administrative
Other expenses (income)
Operating income (loss) 286 84 15
Elimination of inter-company sales [Member] | Sale of Products and Services [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues
Elimination of inter-company sales [Member] | Intersegment Revenues [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues (5,057) (3,536) (5,729)
OEM of Heat Transfer Solutions and Aviation Accessories [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues 24,707 31,237 28,255
Cost of revenues 25,612 25,535 24,028
Gross profit (905) 5,702 4,227
Research and development 287 398 758
Selling and marketing 1,512 1,968 1,544
General and administrative 2,384 2,072 2,539
Other expenses (income) (2)
Operating income (loss) (5,086) 1,264 (614)
OEM of Heat Transfer Solutions and Aviation Accessories [Member] | Sale of Products and Services [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues 20,065 27,898 23,515
OEM of Heat Transfer Solutions and Aviation Accessories [Member] | Intersegment Revenues [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues 4,642 3,339 4,740
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 31,344 34,812 32,429
Cost of revenues 27,659 26,085 23,440
Gross profit 3,685 8,727 8,989
Research and development 98 169 210
Selling and marketing 1,660 1,358 1,105
General and administrative 2,375 3,182 2,915
Other expenses (income)
Operating income (loss) (448) 4,018 4,759
MRO Services for heat transfer components and OEM of heat transfer solutions [Member] | Sale of Products and Services [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues 30,929 34,615 31,440
MRO Services for heat transfer components and OEM of heat transfer solutions [Member] | Intersegment Revenues [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues 415 197 989
MRO services for Aviation Components [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues 32,487 33,009 31,630
Cost of revenues 28,561 29,026 27,423
Gross profit 3,926 3,983 4,207
Research and development 29
Selling and marketing 1,324 1,213 792
General and administrative 2,631 3,049 3,473
Other expenses (income) (2) 53
Operating income (loss) (27) (332) (87)
MRO services for Aviation Components [Member] | Sale of Products and Services [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues 32,487 33,009 31,630
MRO services for Aviation Components [Member] | Intersegment Revenues [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues
Overhaul and coating of jet engine components [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues 9,697 11,005 9,209
Cost of revenues 8,298 9,057 7,610
Gross profit 1,399 1,948 1,599
Research and development 168 164 143
Selling and marketing 417 435 435
General and administrative 1,169 1,106 1,096
Other expenses (income)
Operating income (loss) (355) 243 (75)
Overhaul and coating of jet engine components [Member] | Sale of Products and Services [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues 9,697 11,005 9,209
Overhaul and coating of jet engine components [Member] | Intersegment Revenues [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues
Other [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues    
Cost of revenues    
Gross profit    
Research and development    
Selling and marketing    
General and administrative    
Other expenses (income)     (138)
Operating income (loss)     138
Other [Member] | Sale of Products and Services [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues    
Other [Member] | Intersegment Revenues [Member]      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]      
Revenues