EARNINGS PER SHARE (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Notes to Financial Statements
Loss attributable to Trio-Tech International common shareholders from continuing operations, net of tax	$ (543,000)	$ (518,000)	$ (1,065,000)	$ (2,523,000)
Loss attributable to Trio-Tech International common shareholders from discontinued operations, net of tax				(2,000)
Net loss attributable to Trio-Tech International common shareholders	$ (543,000)	$ (518,000)	$ (1,065,000)	$ (2,525,000)
Basic and diluted loss per share from continuing operations attributable to Trio-Tech International	$ (0.16)	$ (0.16)	$ (0.32)	$ (0.76)
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	$ (0.16)	$ (0.16)	$ (0.32)	$ (0.76)
Weighted average number of common shares outstanding basic	3,322	3,322	3,322	3,322
Dilutive effect of stock options
Number of shares used to compute earnings per share diluted	3,322	3,322	3,322	3,322