Note 14 - Bank Loans Payable - Bank Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Bank loan payable	$ 1,352	$ 1,744
Current portion of bank loans payable	503	503
Currency translation effect on current portion of bank loans	(28)	(31)
Current portion of bank loans payable	475	472
Long-term portion of bank loans payable	933	1,357
Currency translation effect on long-term portion of bank loans	(56)	(85)
Long-term portion of bank loans payable	877	1,272
Notes Payable To Banks 1 [Member]
Bank loan payable	957	1,392
Notes Payable To Banks 2 [Member]
Bank loan payable	84	128
Notes Payable to Bank 3 [Member]
Bank loan payable	169	224
Notes Payable to Bank 4 [Member]
Bank loan payable	$ 142	$ 0

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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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Represents gross long-term loan loans from bank.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- 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
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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-Publisher FASB
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-Topic 944
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-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

+ Details

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Balance Type:	credit
Period Type:	instant

- 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
-Paragraph 1
-Subparagraph (SX 210.6-04(13)(a)(1))
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Balance Type:	credit
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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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-Publisher FASB
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