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Available for Sale Securities - Gross Unrealized Losses and Fair Value, Continuous Unrealized Loss Position (Details) $ in Thousands | Jun. 30, 2021 USD ($) security | Jun. 30, 2020 USD ($) security
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Available-for-sale Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 66,401 | $ 10,032
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 883 | 44
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 790 | 643
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 258 | 338
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 67,191 | 10,675
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 1,141 | $ 382
Obligations of states and political subdivisions |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 3,177 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 40 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 3,177 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | $ 40 |
Number of individual securities in an unrealized loss position | security | 7 | 7
Corporate Obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 9,331 | $ 995
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 79 | 5
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 720 | 454
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 256 | 333
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 10,051 | 1,449
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | $ 335 | $ 338
Number of individual securities in an unrealized loss position | security | 7 | 7
Other securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value |  | $ 189
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |  | 5
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  | 189
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss |  | 5
TOTAL MBS and CMOs |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 53,893 | 9,037
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 764 | 39
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 70 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 2 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 53,963 | 9,037
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | $ 766 | $ 39
Mortgage-Backed Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Number of individual securities in an unrealized loss position | security | 22 | 22

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