5. EARNINGS PER SHARE (Details) (USD $)	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Notes to Financial Statements
Loss attributable to Trio-Tech International common shareholders from continuing operations, net of tax	$ (17)	$ (803)
Loss attributable to Trio-Tech International common shareholders from discontinued operations, net of tax		(1)
Net loss attributable to Trio-Tech International common shareholders	$ (17)	$ (804)
Basic and diluted loss per share from continuing operations attributable to Trio-Tech International	$ (0.01)	$ (0.24)
Basic and diluted loss per share from discontinued operations attributable to Trio-Tech International
Basic and diluted loss per share from net loss attributable to Trio Tech International	$ (0.01)	$ (0.24)
Weighted average number of common shares outstanding basic	3,288	3,288
Dilutive effect of stock options
Number of shares used to compute earnings per share diluted	3,288	3,288