Note 19 - Stock Options - Summary of Options Activities (Details) - Employee Stock Option Plan 2017 [Member] - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2022	Jun. 30, 2021	Jul. 01, 2021
Outstanding. options (in shares)			236,375	267,000	267,000
Outstanding, weighted average exercise price (in dollars per share)			$ 5.21	$ 4.21	$ 4.21
Outstanding, weighted average remaining contractual term (Year)			3 years 2 months 1 day	2 years 9 months 18 days	2 years 7 months 9 days	3 years 2 months 19 days
Aggregate intrinsic value outstanding	$ 117	$ 621	$ 117	$ 621	$ 87		$ 290
Granted, options (in shares)	40,000	40,500	65,000	40,500
Granted, weighted average exercise price (in dollars per share)			$ 4.84
Exercised, options (in shares)			(5,000)	(41,125)
Exercised, weighted average exercise price (in dollars per share)			$ 3.75	$ 2.86
Forfeited or expired, options (in shares)			(80,000)
Outstanding, options (in shares)	216,375	266,375	216,375	266,375	236,375	267,000
Outstanding, weighted average exercise price (in dollars per share)	$ 4.89	$ 4.96	$ 4.89	$ 4.96	$ 5.21	$ 4.21
Exercisable, options (in shares)	134,625	170,500	134,625	170,500
Exercisable, weighted average exercise price (in dollars per share)	$ 4.49	$ 4.81	$ 4.49	$ 4.81
Exercisable, weighted average remaining contractual term (Year)			2 years 6 months 7 days	2 years 2 months 26 days
Exercisable, aggregate intrinsic value	$ 109	$ 415	$ 109	$ 415
Exercised, options (in shares)			(5,000)	(41,125)