Note 19 - Stock Options - Summary of Nonvested Employee Stock (Details) - Employee Stock Option Plan 2017 [Member] - $ / shares	6 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
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)	25,000
Granted, weighted average grant date fair value (in dollars per share)	$ 5.18
Vested (in shares)	(9,000)	(6,750)
Forfeited (in shares)	(10,000)
Non-vested options outstanding (in shares)	81,875	95,500
Non-vested, weighted average grant date fair value (in dollars per share)	$ 5.79	$ 2.29