Note 13 - Equity - Share Repurchase Program (Details) - USD ($)		3 Months Ended																12 Months Ended		49 Months Ended
		Jun. 30, 2023		Mar. 31, 2023		Dec. 31, 2022		Sep. 30, 2022		Jun. 30, 2022		Mar. 31, 2022		Dec. 31, 2021		Sep. 30, 2021		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023
Total number of shares purchased (in shares)		47,847	[1]	74,150	[1]	88,741	[1]	20,859	[1]	192,747	[1]	538,376	[1]	244,552	[1]	7,600	[1]	231,597	983,275	1,945,666
Average price paid per share (in dollars per share)		$ 6.86	[1]	$ 5.79	[1]	$ 5.05	[1]	$ 4.97	[1]	$ 4.78	[1]	$ 6.95	[1]	$ 5.85	[1]	$ 5.43	[1]			$ 5.91
Amount available for future share repurchases under the plans or programs		$ 9,507,781																$ 9,507,781		$ 9,507,781
Share Repurchase Program [Member]
Total number of shares purchased (in shares)	[1]	328,129		429,271		448,266		103,657		921,331		3,741,477		1,429,697		41,276
Amount available for future share repurchases under the plans or programs	[1]	$ 9,507,781		$ 9,835,910		$ 10,265,181		$ 10,713,447		$ 10,817,104		$ 2,738,435		$ 6,479,912		$ 7,909,609		$ 9,507,781	$ 10,817,104	$ 9,507,781

[1] We close our books and records on the last calendar day of each month to align our financial closing with our business processes.