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SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Customer Concentration Risk [Member] | Single Customer [Member]
Significant Accounting Policies [Line Items]
Customer concentration risk	15.00%	24.00%

X

- Definition

It represents concentration risk threshold percentage.

+ References

No definition available.

+ Details

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X

- Definition

Significant Accounting Policies [Line Items]

+ References

No definition available.

+ Details

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Namespace Prefix:	tatt_
Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: