Note 16 - Government Grants (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Government Assistance, Income, Increase (Decrease)	$ 12	$ 83	$ 89	$ 108
Financial Assistance Received From the Singapore Government [Member]
Government Assistance, Income, Increase (Decrease)	7	76	19	86
Subsidy From China Government [Member]
Government Assistance, Income, Increase (Decrease)	$ 5	$ 7	12	$ 22
Employee Retention Credit [Member]
Government Assistance, Income, Increase (Decrease)			$ 57