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Note 3 - Term Deposits - Term Deposits (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Short-term deposits | $ 5,620 | $ 6,901 |
Currency translation effect on short-term deposits | 171 | (274) |
Total short-term deposits | 5,791 | 6,627 |
Restricted term deposits - Current | 737 | 755 |
Currency translation effect on restricted term deposits | 25 | (16) |
Total restricted term deposits - Current | 762 | 739 | $ 747
Restricted term deposits – Non-current | 1,721 | 1,763 |
Currency translation effect on restricted term deposits | 57 | (47) |
Total restricted term deposits - Non-current | 1,778 | 1,716 | $ 1,742
Total term deposits | $ 8,331 | $ 9,082 |

X
- Definition Represents effect of current restricted term deposits for currency translation. + References No definition available. + Details
Name: | trt_CurrencyTranslationEffectRestrictedTermDepositsCurrent
Namespace Prefix: | trt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the effect of noncurrent restricted term deposits for currency translation. + References No definition available. + Details
Name: | trt_CurrencyTranslationEffectRestrictedTermDepositsNoncurrent
Namespace Prefix: | trt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents currency translation effect short term deposit. + References No definition available. + Details
Name: | trt_CurrencyTranslationEffectShortTermDeposit
Namespace Prefix: | trt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents current restricted deposits asset. + References No definition available. + Details
Name: | trt_DepositAssetsRestrictedCurrent
Namespace Prefix: | trt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the amount of noncurrent restricted deposit assets. + References No definition available. + Details
Name: | trt_DepositAssetsRestrictedNoncurrent
Namespace Prefix: | trt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents short-term depoist. + References No definition available. + Details
Name: | trt_ShortTermDeposit
Namespace Prefix: | trt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The carrying amount of the asset transferred to a third party to serve as a deposit, which typically serves as security against failure by the transferor to perform under terms of an agreement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -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: | debit
Period Type: | instant

X
- Definition Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment within one year or during the operating cycle, if shorter. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(8)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents the current portion of investments which are not defined as or included in marketable (debt, equity, or other) securities that are pledged or subject to withdrawal restrictions. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 954 -SubTopic 210 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480632/954-210-45-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 954 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480602/954-210-50-2 + Details
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X
- Definition This element represents the noncurrent portion of investments which are not defined as or included in marketable (debt, equity, or other) securities that are pledged or subject to withdrawal restrictions. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 954 -SubTopic 210 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480632/954-210-45-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 954 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480602/954-210-50-2 + Details
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