Note 12 - Bank Loans Payable - Bank Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Jun. 30, 2025
Bank loan payable	$ 581	$ 684
Current portion of bank loans payable	259	225
Currency translation effect on current portion of bank loans	12	31
Current portion of bank loans payable	271	256
Long-term portion of bank loans payable	297	368
Currency translation effect on long-term portion of bank loans	13	60
Long-term portion of bank loans payable	310	428
Notes Payable To Banks 1 [Member]
Bank loan payable	450	508
Notes Payable To Banks 2 [Member]
Bank loan payable	0	4
Notes Payable to Bank 3 [Member]
Bank loan payable	60	85
Notes Payable to Bank 4 [Member]
Bank loan payable	$ 71	$ 87

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

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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

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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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