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FAIR VALUE MEASUREMENT (Roll-Forward of Level 3 Assets) (Details) (First Aviation Services, Inc. [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jun. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Impairment of equity method investment       $ 3,300us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment  
Convertible Subordinated Debt [Member]
       
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Original amount of debt instrument       $ 3,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleSubordinatedDebtMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= tatt_FirstAviationServicesIncMember
Interest rate       10.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleSubordinatedDebtMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= tatt_FirstAviationServicesIncMember
Exercise price of warrants issued       $ 7.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleSubordinatedDebtMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= tatt_FirstAviationServicesIncMember
Percentage of post-exercise shareholders' equity callable by warrant       15.00%tatt_ClassOfWarrantOrRightPercentageOfShareholdersEquity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleSubordinatedDebtMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= tatt_FirstAviationServicesIncMember