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SEGMENT INFORMATION (Schedule of Operating Income By Segment) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | $ 95,794 | $ 85,607 | $ 80,726
Cost of revenues | 76,757 | 71,942 | 64,522
Gross profit | 19,037 | 13,665 | 16,204
Research and development | 1,140 | 890 | 1,070
Selling and marketing | 3,876 | 2,903 | 3,203
General and administrative | 10,023 | 8,469 | 8,123
Other expenses (income) | (138) | 631 | (11)
Gain on bargain purchase |  | (4,833) |
Operating income | 4,136 | 5,605 | 3,819
Oem Of Heat Transfer Solutions And Aviation Accessories [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | 28,255 | 27,351 | 28,185
Cost of revenues | 24,028 | 23,887 | 23,249
Gross profit | 4,227 | 3,464 | 4,936
Research and development | 758 | 619 | 841
Selling and marketing | 1,544 | 1,270 | 1,538
General and administrative | 2,539 | 1,880 | 2,717
Other expenses (income) |  |  | (11)
Operating income | (614) | (305) | (149)
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 | 32,429 | 31,001 | 30,350
Cost of revenues | 23,440 | 22,541 | 23,101
Gross profit | 8,989 | 8,460 | 7,249
Research and development | 210 | 264 | 229
Selling and marketing | 1,105 | 961 | 1,058
General and administrative | 2,915 | 3,000 | 2,417
Other expenses (income) |  |  |
Operating income | 4,759 | 4,235 | 3,545
MRO Services for Aviation Components [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | 31,630 | 29,665 | 27,734
Cost of revenues | 27,423 | 28,474 | 23,502
Gross profit | 4,207 | 1,191 | 4,232
Research and development | 29 |  |
Selling and marketing | 792 | 608 | 607
General and administrative | 3,473 | 3,303 | 2,989
Other expenses (income) |  |  |
Operating income | (87) | (2,720) | 636
Overhaul and Coating of Jet Engine Components [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | 9,209 | 1,905 |
Cost of revenues | 7,610 | 1,485 |
Gross profit | 1,599 | 420 |
Research and development | 143 | 7 |
Selling and marketing | 435 | 64 |
General and administrative | 1,096 | 286 |
Operating income | (75) | 63 |
Other Segments [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Other expenses (income) | (138) | 631 |
Gain on bargain purchase |  | (4,833) |
Operating income | 138 | (4,202) |
Sale of Products and Services [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | 95,794 | 85,607 | 80,726
Sale of Products and Services [Member] | Oem Of Heat Transfer Solutions And Aviation Accessories [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | 23,515 | 23,511 | 22,871
Sale of Products and Services [Member] | 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 | 31,440 | 30,526 | 30,121
Sale of Products and Services [Member] | MRO Services for Aviation Components [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | 31,630 | 29,665 | 27,734
Sale of Products and Services [Member] | Overhaul and Coating of Jet Engine Components [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | 9,209 | 1,905 |
Intersegment Revenues [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues |  |  |
Intersegment Revenues [Member] | Oem Of Heat Transfer Solutions And Aviation Accessories [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | 4,740 | 3,840 | 5,314
Intersegment Revenues [Member] | 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 | 989 | 475 | 229
Intersegment Revenues [Member] | MRO Services for Aviation Components [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues |  |  |
Intersegment Revenues [Member] | Overhaul and Coating of Jet Engine Components [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues |  |  |
Intersegment Elimination [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | (5,729) | (4,315) | (5,543)
Cost of revenues | (5,744) | (4,445) | (5,330)
Gross profit | 15 | 130 | (213)
Research and development |  |  |
Selling and marketing |  |  |
General and administrative |  |  |
Other expenses (income) |  |  |
Operating income | 15 | 130 | (213)
Intersegment Elimination [Member] | Sale of Products and Services [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues |  |  |
Intersegment Elimination [Member] | Intersegment Revenues [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Revenues | $ (5,729) | $ (4,315) | $ (5,543)

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