Note 23 - Stock Options - Summary of Options Activities 2007 Directors Plan (Details) - Director Plan 2007 [Member] - USD ($)	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Outstanding. options (in shares)	50,000	250,000
Outstanding, weighted average exercise price (in dollars per share)	$ 4.14	$ 3.32
Outstanding, weighted average remaining contractual term (Year)		9 months	9 months 29 days
Aggregate intrinsic value outstanding	$ 0	$ 45	$ 22
Exercised, options (in shares)	(50,000)	(200,000)
Exercised, weighted average exercise price (in dollars per share)	$ 4.14	$ 3.12
Forfeited or expired, options (in shares)	0	0
Forfeited or expired, weighted average exercise price (in dollars per share)	$ 0	$ 0
Outstanding, options (in shares)	0	50,000	250,000
Outstanding, weighted average exercise price (in dollars per share)	$ 0	$ 4.14	$ 3.32
Exercisable, options (in shares)	0	50,000
Exercisable, , weighted average exercise price (in dollars per share)	$ 0	$ 4.14
Exercisable, aggregate intrinsic value	$ 0	$ 45
Exercisable, weighted average remaining contractual term (Year)		9 months