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Securities - Schedule of Available for Sale Securities (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Jun. 30, 2021
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | $ 205,663 | $ 203,286
Gross Unrealized Gains | 4,751 | 4,875
Gross Unrealized Losses | (1,005) | (1,141)
Total AFS securities | 209,409 | 207,020
US States and Political Subdivisions Debt Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 45,360 | 46,257
Gross Unrealized Gains | 1,545 | 1,479
Gross Unrealized Losses | (36) | (40)
Total AFS securities | 46,869 | 47,696
Corporate Obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 18,853 | 20,356
Gross Unrealized Gains | 325 | 290
Gross Unrealized Losses | (346) | (335)
Total AFS securities | 18,832 | 20,311
Other Debt Obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 591 | 647
Gross Unrealized Gains | 17 | 25
Total AFS securities | 608 | 672
Debt and Equity Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 64,804 | 67,260
Gross Unrealized Gains | 1,887 | 1,794
Gross Unrealized Losses | (382) | (375)
Total AFS securities | 66,309 | 68,679
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 63,247 | 64,400
Gross Unrealized Gains | 950 | 932
Gross Unrealized Losses | (258) | (379)
Total AFS securities | 63,939 | 64,953
Commercial MBS issued by GSEs |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 35,349 | 35,425
Gross Unrealized Gains | 1,286 | 1,394
Gross Unrealized Losses | (291) | (338)
Total AFS securities | 36,344 | 36,481
CMOs issued by GSEs |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 42,263 | 36,201
Gross Unrealized Gains | 628 | 755
Gross Unrealized Losses | (74) | (49)
Total AFS securities | 42,817 | 36,907
Total MBS and CMOs |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 140,859 | 136,026
Gross Unrealized Gains | 2,864 | 3,081
Gross Unrealized Losses | (623) | (766)
Total AFS securities | $ 143,100 | $ 138,341

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