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Note 10 - Lines Of Credit- Line of Credit (Details) (Parentheticals) | 12 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021
Trio Tech International Pte Ltd [Member] | SIBOR Rate [Member] |  |
Basis spread rate |  | 1.20%
Trio Tech International Pte Ltd [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |
Basis spread rate |  | 1.25%
Trio Tech International Pte Ltd [Member] | Minimum [Member] |  |
Fixed Interest Rate | 1.85% | 1.85%
Trio Tech International Pte Ltd [Member] | Maximum [Member] |  |
Fixed Interest Rate | 5.50% | 5.50%
Universal (Far East) Pte. Ltd. [Member] | Minimum [Member] |  |
Fixed Interest Rate | 1.85% | 1.85%
Universal (Far East) Pte. Ltd. [Member] | Maximum [Member] |  |
Fixed Interest Rate | 5.50% | 5.50%
Trio-Tech (Malaysia) Sdn. Bhd.[Member] | Cost of Funds Rate [Member] |  |
Basis spread rate | 2.00% | 2.00%

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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