Note 24 - Stock Options - Summary of Nonvested Employee Stock (Details) - Employee Stock Option Plan 2017 [Member] - $ / shares	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Non-vested options outstanding (in shares)	75,875	102,250
Non-vested, weighted average grant date fair value (in dollars per share)	$ 5.98	$ 2.29
Granted (in shares)	65,000	40,500
Granted, weighted average grant date fair value (in dollars per share)	$ 4.77	$ 3.69
Vested (in shares)	(49,125)	(66,875)
Forfeited (in shares)	(10,000)
Non-vested options outstanding (in shares)	81,750	75,875
Non-vested, weighted average grant date fair value (in dollars per share)	$ 5.53	$ 5.98