Note 19 - Stock Options - Summary of Options Activities 2017 Directors Plan (Details) - Director Plan 2017 [Member] - USD ($)	6 Months Ended		12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Outstanding. options (in shares)	420,000	320,000	320,000
Outstanding, weighted average exercise price (in dollars per share)	$ 5.10	$ 4.27	$ 4.27
Outstanding, weighted average remaining contractual term (Year)	2 years 4 months 2 days	2 years 11 months 19 days	2 years 10 months 6 days	3 years 2 months 19 days
Aggregate intrinsic value outstanding	$ 255	$ 2,933	$ 228	$ 340
Outstanding, options (in shares)	420,000	320,000	420,000	320,000
Outstanding, weighted average exercise price (in dollars per share)	$ 5.10	$ 4.27	$ 5.10	$ 4.27
Exercisable, options (in shares)	420,000	320,000
Exercisable, weighted average exercise price (in dollars per share)	$ 5.10	$ 4.27
Exercisable, weighted average remaining contractual term (Year)	2 years 4 months 2 days	2 years 11 months 19 days
Exercisable, aggregate intrinsic value	$ 255	$ 2,933