Note 3 - Securities - Amortized Cost and Fair Value of Securities Available-for-sale and Securities Held-to-maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021
Available-for-sale securities, amortized cost	$ 242,487	$ 203,267
Available-for-sale securities, gross unrealized gains	4,588	5,331
Available-for-sale securities, gross unrealized losses	(1,661)	(838)
Available-for-sale securities, fair value	245,414	207,760
Held-to-maturity, amortized cost	7,896	7,996
Held-to-maturity, fair value	8,219	8,352
US Government-sponsored Enterprises Debt Securities [Member]
Available-for-sale securities, amortized cost	14,248	14,746
Available-for-sale securities, gross unrealized gains	186	301
Available-for-sale securities, gross unrealized losses	(115)	(14)
Available-for-sale securities, fair value	14,319	15,033
US States and Political Subdivisions Debt Securities [Member]
Available-for-sale securities, amortized cost	77,315	73,013
Available-for-sale securities, gross unrealized gains	3,091	3,561
Available-for-sale securities, gross unrealized losses	(225)	(75)
Available-for-sale securities, fair value	80,181	76,499
Held-to-maturity, amortized cost	7,896	7,996
Held-to-maturity, gross unrecognized gains	323	356
Held-to-maturity, gross unrecognized losses	0	0
Held-to-maturity, fair value	8,219	8,352
Residential Mortgage Backed Securities [Member]
Available-for-sale securities, amortized cost	104,215	90,065
Available-for-sale securities, gross unrealized gains	1,097	1,136
Available-for-sale securities, gross unrealized losses	(1,110)	(684)
Available-for-sale securities, fair value	104,202	90,517
Commercial Mortgage Backed Securities [Member]
Available-for-sale securities, amortized cost	8,636	8,641
Available-for-sale securities, gross unrealized gains	37	204
Available-for-sale securities, gross unrealized losses	(23)	0
Available-for-sale securities, fair value	8,650	8,845
Collateralized Mortgage Obligations [Member]
Available-for-sale securities, amortized cost	22,010	16,302
Available-for-sale securities, gross unrealized gains	100	129
Available-for-sale securities, gross unrealized losses	(121)	(57)
Available-for-sale securities, fair value	21,989	16,374
Other Debt Obligations [Member]
Available-for-sale securities, amortized cost	16,063	500
Available-for-sale securities, gross unrealized gains	77	0
Available-for-sale securities, gross unrealized losses	(67)	(8)
Available-for-sale securities, fair value	$ 16,073	$ 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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