Note 19 - Earnings Per Share - Computation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Sep. 30, 2024	Sep. 30, 2023
(Loss) / Income attributable to Trio-Tech International common shareholders from continuing operations, net of tax		$ (240)	$ 227
Income attributable to Trio-Tech International common shareholders from discontinued operations, net of tax		4	3
Net (Loss) / Income Attributable to Trio-Tech International Common Shareholders		$ (236)	$ 230
Weighted average number of common shares outstanding - basic (in shares)		4,250	4,096
Dilutive effect of stock options (in shares)		85	184
Number of shares used to compute earnings per share - diluted (in shares)		4,335	4,280
Basic (loss) / earnings per share from continuing operations attributable to Trio-Tech International (in dollars per share)		$ (0.06)	$ 0.06
Basic earnings per share from discontinued operations attributable to Trio-Tech International (in dollars per share)		0	0
Basic (Loss) / Earnings per Share from Net (Loss) / Income (in dollars per share)		(0.06)	0.06
Diluted (loss) / earnings per share from continuing operations attributable to Trio-Tech International (in dollars per share)		(0.06)	0.05
Diluted earnings per share from discontinued operations attributable to Trio-Tech International (in dollars per share)		0	0
Diluted (Loss) / Earnings per Share from Net (Loss) / Income (in dollars per share)	[1]	$ (0.06)	$ 0.05

[1] For periods in which the Company has reported net loss, diluted net loss per share attributable to common stockholders is the same as basic net loss per share attributable to common stockholders, because dilutive common shares are not assumed to have been issued if their effect is anti-dilutive.