COMMITMENTS AND CONTINGENT LIABILITIES (Guarantees) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
TAT Technologies Ltd [Member]
Guarantees:
Bank guarantee to secure liability to Israeli customs	$ 58
Additional bank guarantee to secure liability to Israeli customs	36
Limco Piedmont Inc [Member]
Guarantees:
Bank guarantee to secure liability to lessor	$ 790

Value of bank guarantee to secure the company's liability to the Israeli customs.

No definition available.

Name:	tatt_BankGuaranteeToSecureLiabilityToIsraeliCustoms
Namespace Prefix:	tatt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant