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SEGMENT INFORMATION (Schedule of Operating Income By Segment) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | $ 106,527 | $ 95,794 | $ 85,607
Cost of revenues | 86,083 | 76,757 | 71,942
Gross profit | 20,444 | 19,037 | 13,665
Research and development | 731 | 1,140 | 890
Selling and marketing | 4,974 | 3,876 | 2,903
General and administrative | 9,409 | 10,023 | 8,469
Other expenses (income) | 53 | (138) | 631
Gain on bargain purchase |  |  | (4,833)
Operating income | 5,277 | 4,136 | 5,605
Financial expense, net | 338 | 154 | 349
Income before taxes on income | 4,939 | 3,982 | 5,256
Sale of Products and Services [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | 106,527 | 95,794 | 85,607
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 |  | (5,729) | (4,315)
Cost of revenues | (3,620) | (5,744) | (4,445)
Gross profit | 84 | 15 | 130
Research and development |  |  |
Selling and marketing |  |  |
General and administrative |  |  |
Other expenses (income) |  |  |
Gain on bargain purchase |  |  |
Operating income | 84 | 15 | 130
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 | (3,536) | (5,729) | (4,315)
OEM of Heat Transfer Solutions and Aviation Accessories [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | 31,237 | 28,255 | 27,351
Cost of revenues | 25,535 | 24,028 | 23,887
Gross profit | 5,702 | 4,227 | 3,464
Research and development | 398 | 758 | 619
Selling and marketing | 1,968 | 1,544 | 1,270
General and administrative | 2,072 | 2,539 | 1,880
Other expenses (income) |  |  |
Gain on bargain purchase |  |  |
Operating income | 1,264 | (614) | (305)
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 | 27,898 | 23,515 | 23,511
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 | 3,339 | 4,740 | 3,840
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 | 34,812 | 32,429 | 31,001
Cost of revenues | 26,085 | 23,440 | 22,541
Gross profit | 8,727 | 8,989 | 8,460
Research and development | 169 | 210 | 264
Selling and marketing | 1,358 | 1,105 | 961
General and administrative | 3,182 | 2,915 | 3,000
Other expenses (income) |  |  |
Gain on bargain purchase |  |  |
Operating income | 4,018 | 4,759 | 4,235
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 | 34,615 | 31,440 | 30,526
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 | 197 | 989 | 475
MRO services for Aviation Components [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | 33,009 | 31,630 | 29,665
Cost of revenues | 29,026 | 27,423 | 28,474
Gross profit | 3,983 | 4,207 | 1,191
Research and development |  | 29 |
Selling and marketing | 1,213 | 792 | 608
General and administrative | 3,049 | 3,473 | 3,303
Other expenses (income) | 53 |  |
Gain on bargain purchase |  |  |
Operating income | (332) | (87) | (2,720)
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 | 33,009 | 31,630 | 29,665
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 | 11,005 | 9,209 | 1,905
Cost of revenues | 9,057 | 7,610 | 1,485
Gross profit | 1,948 | 1,599 | 420
Research and development | 164 | 143 | 7
Selling and marketing | 435 | 435 | 64
General and administrative | 1,106 | 1,096 | 286
Other expenses (income) |  |  |
Gain on bargain purchase |  |  |
Operating income | 243 | (75) | 63
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 | 11,005 | 9,209 | 1,905
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) | 631
Gain on bargain purchase |  |  | (4,833)
Operating income |  | 138 | (4,202)
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 |  |  |

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