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v3.22.2.2

Note 1 - Basis of Presentation and Summary of Significant Accounting Policies. (Details Textual) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($)
Number of Operating Segments | 4 |
Net Income (Loss) Available to Common Stockholders, Basic, Total | $ 2,395 | $ (591)
Retained Earnings (Accumulated Deficit), Total | 9,219 | 6,824
Research and Development Expense, Total | 375 | 357
Subsidiaries [Member] |  |
Retained Earnings (Accumulated Deficit), Total | $ 18,755 | $ 16,683
Minimum [Member] |  |
Trade Accounts Receivable, Credit Term (Day) | 30 days |
Maximum [Member] |  |
Trade Accounts Receivable, Credit Term (Day) | 90 days |
Trio-tech (Jiangsu) Co. Ltd. [Member] |  |
Noncontrolling Interest, Ownership Percentage by Parent | 51.00% |
Trio-Tech (Tianjin) Co., Ltd, [Member] |  |
Noncontrolling Interest, Ownership Percentage by Parent | 100.00% |

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