EARNINGS PER SHARE (Details) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Notes to Financial Statements
Loss attributable to Trio-Tech International common shareholders from continuing operations, net of tax	$ (3,100)	$ (684)
Loss attributable to Trio-Tech International common shareholders from discontinued operations, net of tax	(4)	(4)
Net loss attributable to Trio-Tech International common shareholders	$ (3,104)	$ (688)
Basic and diluted loss per share from continuing operations attributable to Trio-Tech International	$ (0.94)	$ (0.21)
Basic and diluted loss per share from discontinued operations attributable to Trio-Tech International	$ 0
Basic and diluted loss per share from net loss attributable to Trio-Tech International	$ (0.94)	$ (0.21)
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