Note 19 - Stock Options - Summary of Nonvested Employee Stock (Details) - Employee Stock Option Plan 2017 [Member] - $ / shares	3 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2021	Jun. 30, 2021
Non-vested options outstanding, beginning (in shares)	84,625	75,875	102,250	102,250
Non-vested, weighted average grant date fair value (in dollars per share)	$ 5.72	$ 5.98	$ 2.29	$ 2.29
Granted (in shares)	25,000
Granted, weighted average grant date fair value (in dollars per share)	$ 5.18
Vested (in shares)	(16,250)