Note 3 - Securities - Amortized Cost and Fair Value of Securities Available-for-sale and Securities Held-to-maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Available-for-sale securities, amortized cost	$ 267,831	$ 203,267
Available-for-sale securities, gross unrealized gains	4,371	5,331
Available-for-sale securities, gross unrealized losses	(2,366)	(838)
Available-for-sale securities, fair value	269,836	207,760
Held-to-maturity, amortized cost	7,020	7,996
Held-to-maturity, fair value	7,264	8,352
US Treasury Securities [Member]
Available-for-sale securities, amortized cost	8,893
Available-for-sale securities, gross unrealized gains	0
Available-for-sale securities, gross unrealized losses	(34)
Available-for-sale securities, fair value	8,859
US States and Political Subdivisions Debt Securities [Member]
Available-for-sale securities, amortized cost	85,754	73,013
Available-for-sale securities, gross unrealized gains	3,343	3,561
Available-for-sale securities, gross unrealized losses	(132)	(75)
Available-for-sale securities, fair value	88,965	76,499
Held-to-maturity, amortized cost	7,020	7,996
Held-to-maturity, gross unrecognized gains	244	356
Held-to-maturity, gross unrecognized losses	0	0
Held-to-maturity, fair value	7,264	8,352
US Government-sponsored Enterprises Debt Securities [Member]
Available-for-sale securities, amortized cost	19,882	14,746
Available-for-sale securities, gross unrealized gains	99	301
Available-for-sale securities, gross unrealized losses	(183)	(14)
Available-for-sale securities, fair value	19,798	15,033
Residential Mortgage Backed Securities [Member]
Available-for-sale securities, amortized cost	104,522	90,065
Available-for-sale securities, gross unrealized gains	772	1,136
Available-for-sale securities, gross unrealized losses	(1,394)	(684)
Available-for-sale securities, fair value	103,900	90,517
Commercial Mortgage Backed Securities [Member]
Available-for-sale securities, amortized cost	8,631	8,641
Available-for-sale securities, gross unrealized gains	15	204
Available-for-sale securities, gross unrealized losses	(42)	0
Available-for-sale securities, fair value	8,604	8,845
Collateralized Mortgage Obligations [Member]
Available-for-sale securities, amortized cost	23,684	16,302
Available-for-sale securities, gross unrealized gains	57	129
Available-for-sale securities, gross unrealized losses	(427)	(57)
Available-for-sale securities, fair value	23,314	16,374
Other Debt Obligations [Member]
Available-for-sale securities, amortized cost	16,465	500
Available-for-sale securities, gross unrealized gains	85	0
Available-for-sale securities, gross unrealized losses	(154)	(8)
Available-for-sale securities, fair value	$ 16,396	$ 492

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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