Note 11 - Lines Of Credit- Line of Credit (Details) - USD ($) $ in Thousands		12 Months Ended
Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2023
Trio Tech International Pte Ltd [Member]
Line of Credit Facility, Interest Rate During Period	1.25%
Line of Credit Facility, Maximum Borrowing Capacity	$ 3,907	$ 3,907	$ 3,907
Unused Credit	$ 3,626	$ 3,626	$ 3,701
Line of Credit Facility, Interest Rate During Period	1.25%
Trio Tech International Pte Ltd [Member] \| Minimum [Member]
Line of Credit Facility, Interest Rate During Period			1.25%
Line of Credit Facility, Interest Rate During Period			1.25%
Trio Tech International Pte Ltd [Member] \| Maximum [Member]
Line of Credit Facility, Interest Rate During Period			1.30%
Line of Credit Facility, Interest Rate During Period			1.30%
Universal (Far East) Pte. Ltd. [Member]
Line of Credit Facility, Interest Rate During Period		1.25%
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,843	$ 1,843	$ 1,843
Unused Credit	1,818	$ 1,818	$ 1,559
Line of Credit Facility, Interest Rate During Period		1.25%
Universal (Far East) Pte. Ltd. [Member] \| Minimum [Member]
Line of Credit Facility, Interest Rate During Period			1.25%
Line of Credit Facility, Interest Rate During Period			1.25%
Universal (Far East) Pte. Ltd. [Member] \| Maximum [Member]
Line of Credit Facility, Interest Rate During Period			1.30%
Line of Credit Facility, Interest Rate During Period			1.30%
Trio-Tech (Malaysia) Sdn. Bhd.[Member]
Line of Credit Facility, Interest Rate During Period		2.00%	2.00%
Line of Credit Facility, Maximum Borrowing Capacity	318	$ 318	$ 319
Unused Credit	$ 318	$ 318	$ 319
Line of Credit Facility, Interest Rate During Period		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
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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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

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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

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Namespace Prefix:	us-gaap_
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Period Type:	instant

- Details

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- Details

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- Details

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