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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) (USD $) | 12 Months Ended
--- | ---
Jun. 30, 2012 | Jun. 30, 2011
RESTRICTED TERM DEPOSITS | $ 3,445,000 | $ 3,562,000
Accumulated retained earnings | 2,687,000 | 5,791,000
Research and development | 295 | 250
100 %owned Trio-Tech International Pte. Ltd |  |
RESTRICTED TERM DEPOSITS | 3,150 | 3,259
55% owned Malaysian subsidiary |  |
RESTRICTED TERM DEPOSITS | 295 | 303
100% owned Singapore subsidiary |  |
RESTRICTED TERM DEPOSITS | 150 |
100% owned Thailand subsidiary |  |
RESTRICTED TERM DEPOSITS | 100 | 199
Subsidiaries Member |  |
Accumulated retained earnings | $ 7,474 | $ 12,187

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