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Fair Value Measurements - Fair Value, Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Jun. 30, 2019
--- | --- | ---
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises |  |
Fair value on a recurring basis | $ 126,912 | $ 110,429
US States and Political Subdivisions Debt Securities |  |
Fair value on a recurring basis | 41,988 | 42,783
US Government-sponsored Enterprises Debt Securities |  |
Fair value on a recurring basis |  | 7,270
Other Debt Obligations |  |
Fair value on a recurring basis | 7,624 | 5,053
Fair Value, Inputs, Level 2 | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises |  |
Fair value on a recurring basis | 126,912 | 110,429
Fair Value, Inputs, Level 2 | US States and Political Subdivisions Debt Securities |  |
Fair value on a recurring basis | 41,988 | 42,783
Fair Value, Inputs, Level 2 | US Government-sponsored Enterprises Debt Securities |  |
Fair value on a recurring basis |  | 7,270
Fair Value, Inputs, Level 2 | Other Debt Obligations |  |
Fair value on a recurring basis | $ 7,624 | $ 5,053

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