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Note 24 - Subsequent Events (Details Textual) - Trio-Tech (Jiangsu) Co. Ltd. (“TTJS”) [Member] | Dec. 31, 2021
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Trio-Tech (SIP) Co., Ltd [Member] |
Noncontrolling Interest, Ownership Percentage by Parent | 51.00%
Suzhou Anchuang Technology Management LLP (“SATM”) [Member] |
Noncontrolling Interest, Ownership Percentage by Parent | 49.00%

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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | dei_LegalEntityAxis=trt_TrioTechSipCoLtdMember
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Data Type: | na
Balance Type: |
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- Details
Name: | srt_OwnershipAxis=trt_TriotechJiangsuCoLtdTTJSMember
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Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | dei_LegalEntityAxis=trt_SuzhouAnchuangTechnologyManagementLLPSATMMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |