Note 20 - Stock Options - Summary of 2017 Directors Plan Options Activities (Details) - Director Plan 2017 [Member] - USD ($)	6 Months Ended		12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Outstanding. options (in shares)	431,000	420,000	420,000
Outstanding, weighted average exercise price (in dollars per share)	$ 5.24	$ 4.91	$ 4.91
Outstanding, weighted average remaining contractual term (Year)	2 years 4 months 17 days	2 years 4 months 28 days	2 years 10 months 17 days	2 years 10 months 28 days
Aggregate intrinsic value outstanding	$ 439	$ 352	$ 531	$ 309
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
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)	431,000	420,000	431,000	420,000
Outstanding, weighted average exercise price (in dollars per share)	$ 5.24	$ 4.91	$ 5.24	$ 4.91
Exercisable, options (in shares)	431,000	420,000
Exercisable, weighted average exercise price (in dollars per share)	$ 5.24	$ 4.91
Exercisable, weighted average remaining contractual term (Year)	2 years 4 months 17 days	2 years 4 months 28 days
Exercisable, aggregate intrinsic value	$ 439	$ 352