Note 9 - Lines Of Credit- Line of Credit (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Sep. 30, 2023	Jun. 30, 2023
Trio Tech International Pte Ltd [Member]
Interest Rate	1.25%
Credit Limitation	$ 3,880	$ 3,907
Unused credit	$ 3,643	$ 3,701
Trio Tech International Pte Ltd [Member] \| Minimum [Member]
Interest Rate		1.25%
Trio Tech International Pte Ltd [Member] \| Maximum [Member]
Interest Rate		1.30%
Universal (Far East) Pte. Ltd. [Member]
Interest Rate	1.25%
Credit Limitation	$ 1,830	$ 1,843
Unused credit	2,243	$ 1,559
Universal (Far East) Pte. Ltd. [Member] \| Minimum [Member]
Interest Rate		1.25%
Universal (Far East) Pte. Ltd. [Member] \| Maximum [Member]
Interest Rate		1.30%
Trio-Tech (Malaysia) Sdn. Bhd.[Member]
Credit Limitation	319	$ 319
Unused credit	$ 319	$ 319
Trio-Tech (Malaysia) Sdn. Bhd.[Member] \| Cost of Funds Rate [Member]
Interest Rate	2.00%	2.00%

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The effective interest rate during the reporting period.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_DebtInstrumentAxis=trt_TrioTechInternationalPteLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=trt_UniversalFarEastPteLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=trt_TriotechMalaysiaSdnBhdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=trt_CostOfFundsRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: