Note 23 - Earnings Per Share - Computation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Income attributable to Trio-Tech International common shareholders from continuing operations, net of tax	$ 1,545	$ 2,396
Loss attributable to Trio-Tech International common shareholders from discontinued operations, net of tax	(1)	(1)
Net income attributable to Trio-Tech International Common Shareholders	$ 1,544	$ 2,395
Basic (in shares)	4,082	3,972
Dilutive effect of stock options (in shares)	83	202
Number of shares used to compute earnings per share diluted (in shares)	4,165	4,174
Basic earnings per share from continuing operations attributable to Trio-Tech International (in dollars per share)	$ 0.38	$ 0.61
Loss per share from discontinued operations attributable to Trio-Tech International (in dollars per share)	0	(0.01)
Basic earnings per share from net income attributable to Trio-Tech International (in dollars per share)	0.38	0.60
Diluted earnings per share from continuing operations attributable to Trio-Tech International (in dollars per share)	0.37	0.57
Diluted earnings per share from discontinued operations attributable to Trio-Tech International (in dollars per share)	0	0
Diluted earnings per share from net income attributable to Trio-Tech International (in dollars per share)	$ 0.37	$ 0.57