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Note 14 - Commitments and Contingencies (Details Textual) - CHINA ¥ in Thousands, $ in Thousands | Sep. 23, 2022 USD ($) | Sep. 23, 2022 CNY (¥) | Jun. 30, 2022 USD ($) | Jun. 30, 2022 CNY (¥)
--- | --- | --- | --- | ---
Subsequent Event [Member] |  |  |  |
Contractual Obligation, Total | $ 2,567 | ¥ 17,203 |  |
Equipment Purchase [Member] |  |  |  |
Contractual Obligation, Total |  |  | $ 50 | ¥ 220
Infrastructure Costs [Member] |  |  |  |
Contractual Obligation, Total |  |  | $ 168 | ¥ 1,126

X
- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
Name: | us-gaap_ContractualObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | srt_StatementGeographicalAxis=country_CN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=trt_EquipmentPurchaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=trt_InfrastructureCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |