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Securities - Schedule of available for sale securities (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Jun. 30, 2020
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Other securities |  |
Available-for-sale Securities, Amortized Cost Basis | $ 15,376 | $ 7,919
Available for sale Securities Gross Unrealized Gain | 267 | 48
Available For Sale Securities Gross Unrealized Losses | (334) | (343)
Available-for-sale Securities Estimated Fair Value | 15,309 | 7,624
Mortgage-backed securities |  |
Available-for-sale Securities, Amortized Cost Basis | 113,553 | 122,375
Available for sale Securities Gross Unrealized Gain | 3,868 | 4,576
Available For Sale Securities Gross Unrealized Losses | (58) | (39)
Available-for-sale Securities Estimated Fair Value | 117,363 | 126,912
Total investments and mortgage-backed securities |  |
Available-for-sale Securities, Amortized Cost Basis | 175,714 | 170,780
Available for sale Securities Gross Unrealized Gain | 5,824 | 6,126
Available For Sale Securities Gross Unrealized Losses | (392) | (382)
Available-for-sale Securities Estimated Fair Value | 181,146 | 176,524
State and political subdivisions |  |
Available-for-sale Securities, Amortized Cost Basis | 46,785 | 40,486
Available for sale Securities Gross Unrealized Gain | 1,689 | 1,502
Available-for-sale Securities Estimated Fair Value | $ 48,474 | $ 41,988

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