EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Notes to Financial Statements
Income attributable to Trio-Tech International common shareholders from continuing operations, net of tax	$ 316	$ 188	$ 619	$ 452
(Loss)/ income attributable to Trio-Tech International common shareholders from discontinued operations, net of tax	(6)	2	(6)	(3)
Net income attributable to Trio-Tech International common shareholders	$ 310	$ 190	$ 613	$ 449
Weighted average number of common shares outstanding - basic	3,513	3,513	3,513	3,513
Dilutive effect of stock options	56	16	39	12
Number of shares used to compute earnings per share - diluted	3,569	3,529	3,552	3,525
Basic earnings per share from continuing operations attributable to Trio-Tech International	$ 0.09	$ 0.05	$ 0.18	$ 0.13
Basic earnings per share from discontinued operations attributable to Trio-Tech International	0	0	0	0
Basic Earnings per Share from Net Income Attributable to Trio-Tech International	0.09	0.05	0.18	0.13
Diluted earnings per share from continuing operations attributable to Trio-Tech International	0.09	0.05	0.17	0.13
Diluted earnings per share from discontinued operations attributable to Trio-Tech International	0	0	0	0
Diluted Earnings per Share from Net Income Attributable to Trio-Tech International	$ 0.09	$ 0.05	$ 0.17	$ 0.13