Note 12 - Bank Loans Payable - Bank Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023
Bank loan payable	$ 1,232	$ 1,352
Current portion of bank loans payable	411	503
Currency translation effect on current portion of bank loans	12	(28)
Current portion of bank loans payable	423	475
Long-term portion of bank loans payable	785	933
Currency translation effect on long-term portion of bank loans	24	(56)
Long-term portion of bank loans payable	809	877
Notes Payable To Banks 1 [Member]
Bank loan payable	866	957
Notes Payable To Banks 2 [Member]
Bank loan payable	74	84
Notes Payable to Bank 3 [Member]
Bank loan payable	158	169
Notes Payable to Bank 4 [Member]
Bank loan payable	$ 134	$ 142

Represents long-term bank loan for currency translation effect.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents effect on short-term portion of bank loan for currency translation.

+ References

No definition available.

+ Details

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Namespace Prefix:	trt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents current gross loan payable to bank.

+ References

No definition available.

+ Details

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- Definition

Represents gross long-term loan loans from bank.

+ References

No definition available.

+ Details

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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- Definition

Carrying value as of the balance sheet date of current portion of long-term loans payable to bank due within one year or the operating cycle if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
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- Definition

Carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the operating cycle if longer, excluding current portion.

+ References

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