Note 20 - Stock Options - Summary of Options Activities 2017 Directors Plan (Details) - Director Plan 2017 [Member] - USD ($)	3 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Outstanding. options (in shares)	420,000	420,000	420,000
Outstanding, weighted average exercise price (in dollars per share)	$ 4.91	$ 5.1	$ 5.1
Outstanding, weighted average remaining contractual term (Year)	2 years 7 months 28 days	2 years 6 months 25 days	2 years 10 months 28 days	2 years 10 months 6 days
Aggregate intrinsic value outstanding	$ 954	$ 278	$ 309	$ 228
Granted, options (in shares)	0	0
Granted, weighted average exercise price (in dollars per share)	$ 0	$ 0
Exercise of stock option (in shares)	0	0		0
Exercised, weighted average exercise price (in dollars per share)	$ 0
Forfeited or expired, options (in shares)	0
Forfeited or expired, weighted average exercise price (in dollars per share)	$ 0
Outstanding, options (in shares)	420,000	420,000	420,000	420,000
Outstanding, weighted average exercise price (in dollars per share)	$ 4.91	$ 5.1	$ 4.91	$ 5.1
Exercisable, options (in shares)	420,000	420,000
Exercisable, weighted average exercise price (in dollars per share)	$ 4.91	$ 5.1
Exercisable, weighted average remaining contractual term (Year)	2 years 7 months 28 days	2 years 6 months 25 days
Exercisable, aggregate intrinsic value	$ 954	$ 278