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INVENTORY (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Inventory Disclosure [Abstract] |  |
Total amount of Rotables | $ 8,345 | $ 7,964

X
- Definition Total amount of rotables in inventory. + References No definition available. + Details
Name: | tatt_AmountOfRotables
Namespace Prefix: | tatt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InventoryDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration