Note 19 - Stock Options - Summary of Options Activities 2007 Employee Plan (Details) - Employee Stock Option Plan 2007 [Member] - USD ($)	9 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2022	Jun. 30, 2021
Outstanding. options (in shares)	0	37,500	37,500
Outstanding, weighted average exercise price (in dollars per share)		$ 4.14	$ 4.14
Outstanding, weighted average remaining contractual term (Year)				9 months
Aggregate intrinsic value outstanding	$ 0			$ 34
Outstanding, options (in shares)	0	0	0	37,500
Outstanding, weighted average exercise price (in dollars per share)		$ 0		$ 4.14