Note 3 - Securities - Securities With Unrealized and Unrecognized Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Obligations of U.S. government-sponsored entities and agencies	$ 245,869	$ 59,978
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(23,144)	(837)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	29,788	552
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	(4,981)	(1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	275,657	60,530
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(28,125)	(838)
US Treasury Securities [Member]
Obligations of U.S. government-sponsored entities and agencies	8,447
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(462)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	8,447
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(462)
US States and Political Subdivisions Debt Securities [Member]
Obligations of U.S. government-sponsored entities and agencies	80,445	7,398
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(8,331)	(75)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	2,047	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	(418)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	82,492	7,398
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(8,749)	(75)
Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	3,522
Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(90)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Aggregate Loss	0
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value	3,522
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss	(90)
US Government-sponsored Enterprises Debt Securities [Member]
Obligations of U.S. government-sponsored entities and agencies	26,265	2,003
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(2,424)	(14)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	26,265	2,003
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(2,424)	(14)
Residential Mortgage-Backed Securities [Member]
Obligations of U.S. government-sponsored entities and agencies	76,526	42,378
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(7,586)	(684)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	24,569	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	(4,056)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	101,095	42,378
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(11,642)	(684)
Commercial Mortgage-Backed Securities [Member]
Obligations of U.S. government-sponsored entities and agencies	7,301	7,707
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(1,322)	(56)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	552
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	0	(1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	7,301	8,259
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(1,322)	(57)
Collateralized Debt Obligations [Member]
Obligations of U.S. government-sponsored entities and agencies	30,729	492
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(2,308)	(8)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	2,713	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	(466)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	33,442	492
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(2,774)	$ (8)
Other Debt Obligations [Member]
Obligations of U.S. government-sponsored entities and agencies	16,156
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(711)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	459
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	(41)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	16,615
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	$ (752)