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INVESTMENT IN AN AFFILIATED COMPANY (Acquisition of Stocks of FAvS) (Narrative) (Details) (First Aviation Services, Inc. [Member])	Dec. 31, 2014	Dec. 31, 2013
First Aviation Services, Inc. [Member]
Business Acquisition [Line Items]
Investee ownership percentage	28.08%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tatt_FirstAviationServicesIncMember	29.36%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tatt_FirstAviationServicesIncMember

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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