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Note 9 - Lines Of Credit- Line of Credit (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Jun. 30, 2022
Trio Tech International Pte Ltd [Member] |  |
Credit Limitation | $ 3,991 | $ 4,090
Unused credit | $ 3,781 | $ 3,651
Trio Tech International Pte Ltd [Member] | Minimum [Member] |  |
Interest Rate | 1.85% | 1.85%
Trio Tech International Pte Ltd [Member] | Maximum [Member] |  |
Interest Rate | 5.50% | 5.50%
Universal (Far East) Pte. Ltd. [Member] |  |
Credit Limitation | $ 1,883 | $ 1,076
Unused credit | $ 1,486 | $ 586
Universal (Far East) Pte. Ltd. [Member] | Minimum [Member] |  |
Interest Rate | 1.85% | 1.85%
Universal (Far East) Pte. Ltd. [Member] | Maximum [Member] |  |
Interest Rate | 5.50% | 5.50%
Trio-Tech (Malaysia) Sdn. Bhd.[Member] |  |
Credit Limitation | $ 485 | $ 338
Unused credit | $ 341 | $ 338
Trio-Tech (Malaysia) Sdn. Bhd.[Member] | Cost of Funds Rate [Member] |  |
Interest Rate | 2.00% | 2.00%

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- Definition 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. + References 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

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- Definition The effective interest rate during the reporting period. + References 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_LineOfCreditFacilityInterestRateDuringPeriod
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- 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 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_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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