Available for Sale Securities - Amortized cost, gross unrealized gains, gross unrealized losses, ACL, and approximate fair value of securities available for sale (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Debt Securities, Available-for-sale [Line Items]
Total AFS securities, Amortized Cost	$ 257,760	$ 203,286
Gross Unrealized Gains	109	4,875
Gross Unrealized Losses	(22,475)	(1,141)
Allowance for Credit Losses	0	0
Estimated Fair Value	235,394	207,020
US States and Political Subdivisions Debt Securities
Debt Securities, Available-for-sale [Line Items]
Total AFS securities, Amortized Cost	47,383	46,257
Gross Unrealized Gains	77	1,479
Gross Unrealized Losses	(2,981)	(40)
Allowance for Credit Losses	0	0
Estimated Fair Value	44,479	47,696
Corporate Obligations
Debt Securities, Available-for-sale [Line Items]
Total AFS securities, Amortized Cost	20,818	20,356
Gross Unrealized Gains	32	290
Gross Unrealized Losses	(963)	(335)
Allowance for Credit Losses	0	0
Estimated Fair Value	19,887	20,311
Other Debt Obligations
Debt Securities, Available-for-sale [Line Items]
Total AFS securities, Amortized Cost	486	647
Gross Unrealized Gains		25
Gross Unrealized Losses	(43)
Allowance for Credit Losses	0	0
Estimated Fair Value	443	672
Debt and Equity Securities
Debt Securities, Available-for-sale [Line Items]
Total AFS securities, Amortized Cost	68,687	67,260
Gross Unrealized Gains	109	1,794
Gross Unrealized Losses	(3,987)	(375)
Allowance for Credit Losses	0	0
Estimated Fair Value	64,809	68,679
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Debt Securities, Available-for-sale [Line Items]
Total AFS securities, Amortized Cost	76,345	64,400
Gross Unrealized Gains		932
Gross Unrealized Losses	(7,177)	(379)
Allowance for Credit Losses	0	0
Estimated Fair Value	69,168	64,953
Commercial MBS issued by GSEs
Debt Securities, Available-for-sale [Line Items]
Total AFS securities, Amortized Cost	51,435	35,425
Gross Unrealized Gains		1,394
Gross Unrealized Losses	(5,705)	(338)
Allowance for Credit Losses	0	0
Estimated Fair Value	45,730	36,481
CMOs issued by GSEs
Debt Securities, Available-for-sale [Line Items]
Total AFS securities, Amortized Cost	61,293	36,201
Gross Unrealized Gains		755
Gross Unrealized Losses	(5,606)	(49)
Allowance for Credit Losses	0	0
Estimated Fair Value	55,687	36,907
Total MBS and CMOs
Debt Securities, Available-for-sale [Line Items]
Total AFS securities, Amortized Cost	189,073	136,026
Gross Unrealized Gains		3,081
Gross Unrealized Losses	(18,488)	(766)
Allowance for Credit Losses	0	0
Estimated Fair Value	$ 170,585	$ 138,341

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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
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Amount, before tax, of unrealized loss 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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Amount excluding accrued interest, of allowance for credit loss 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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-Publisher FASB
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Amortized cost excluding accrued interest, before allowance for credit loss, of 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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Amount excluding accrued interest, of 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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