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Securities - Securities Held to Maturity (Details) - USD ($)	Jun. 30, 2023	Jun. 30, 2022
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 146,465,000	$ 118,291,000
Gross Unrecognized Gains	0	44,000
Gross Unrecognized Losses	15,296,000	10,217,000
Allowance for Credit Losses	0	0
Investment securities held to maturity	131,169,000	108,118,000
Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	16,051,000	21,159,000
Gross Unrecognized Gains	0	44,000
Gross Unrecognized Losses	321,000	78,000
Allowance for Credit Losses	0	0
Investment securities held to maturity	15,730,000	21,125,000
Obligations of state and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	16,051,000	21,159,000
Gross Unrecognized Gains	0	44,000
Gross Unrecognized Losses	321,000	78,000
Allowance for Credit Losses	0	0
Investment securities held to maturity	15,730,000	21,125,000
Mortgage-backed securities:
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	130,414,000	97,132,000
Gross Unrecognized Gains	0	0
Gross Unrecognized Losses	14,975,000	10,139,000
Allowance for Credit Losses	0	0
Investment securities held to maturity	115,439,000	86,993,000
Residential pass-through securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	118,166,000	84,851,000
Gross Unrecognized Gains	0	0
Gross Unrecognized Losses	12,736,000	8,587,000
Allowance for Credit Losses	0	0
Investment securities held to maturity	105,430,000	76,264,000
Commercial pass-through securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	12,248,000	12,281,000
Gross Unrecognized Gains	0	0
Gross Unrecognized Losses	2,239,000	1,552,000
Allowance for Credit Losses	0	0
Investment securities held to maturity	$ 10,009,000	$ 10,729,000

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