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LINES OF CREDIT | 9 Months Ended
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Mar. 31, 2021
Line of Credit Facility [Abstract] |
LINES OF CREDIT | Carrying value of the Company’s lines of credit approximates its fair value because the interest rates associated with the lines of credit are adjustable in accordance with market situations when the Company borrowed funds with similar terms and remaining maturities. The Company’s credit rating provides it with readily and adequate access to funds in global markets. As of March 31, 2021, the Company had certain lines of credit that are collateralized by restricted deposits.
Entity with | Type of | Interest |  | Expiration |  |  | Credit |  |  | Unused |  |
| Facility |  |  | Facility |  |  | Rate |  |  | Date |  |  | Limitation |  |  | Credit |
Trio-Tech International Pte. Ltd., Singapore | Lines of Credit | Ranging from 1.85% to 5.5%, SIBOR rate +1.25% and LIBOR rate +1.30% |  |  | - |  |  | $ | 4,230 |  |  | $ | 4,230 |  |  |  |  |  |  |  |  |  |
Universal (Far East) Pte. Ltd. | Lines of Credit | Ranging from 1.85% to 5.5% |  |  | - |  |  | $ | 1,113 |  |  | $ | 929 |  |  |  |  |  |  |  |  |  |
Trio-Tech Malaysia Sdn. Bhd. | Revolving Credit | Cost of Funds Rate +2% |  |  | - |  |  | $ | 361 |  |  | $ | 361 |  |  |  |  |  |  |  |  |  |
As of June 30, 2020, the Company had certain lines of credit that are collateralized by restricted deposits.
Entity with | Type of | Interest |  | Expiration |  |  | Credit |  |  | Unused |  |
| Facility |  |  | Facility |  |  | Rate |  |  | Date |  |  | Limitation |  |  | Credit |
Trio-Tech International Pte. Ltd., Singapore | Lines of Credit | Ranging from 1.85% to 5.5%, SIBOR rate +1.25% and LIBOR rate +1.30% |  |  | - |  |  | $ | 4,806 |  |  | $ | 4,806 |  |  |  |  |  |  |  |  |  |
Universal (Far East) Pte. Ltd. | Lines of Credit | Ranging from 1.85% to 5.5% |  |  | - |  |  | $ | 359 |  |  | $ | 187 |  |  |  |  |  |  |  |  |  |
Trio-Tech Malaysia Sdn. Bhd. | Revolving Credit | Cost of Funds Rate +2% |  |  | - |  |  | $ | 350 |  |  | $ | 350 |  |  |  |  |  |  |  |  |  |

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- Definition Custom Element + References No definition available. + Details
Name: | TRT_LineOfCreditTextBlock
Namespace Prefix: | TRT_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration