Note 19 - Stock Options - Summary of Options Activities 2007 Employee Plan (Details) - Employee Stock Option Plan 2007 [Member] - USD ($)	6 Months Ended		12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	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)		2 months 26 days		9 months
Aggregate intrinsic value outstanding		$ 348		$ 34
Outstanding, options (in shares)	0	37,500	0	37,500
Outstanding, weighted average exercise price (in dollars per share)		$ 4.14		$ 4.14
Exercisable, options (in shares)		37,500
Exercisable, weighted average exercise price (in dollars per share)		$ 4.14
Exercisable, weighted average remaining contractual term (Year)		2 months 26 days
Exercisable, aggregate intrinsic value		$ 348