Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] | Note 3 – Securities Debt securities The following tables summarize the Corporation’s debt securities as of September 30, 2022 June 30, 2022: Available for-Sale Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value September 30, 2022 Obligations of U.S. Treasury $ 8,917 $ — $ (653 ) $ 8,264 Obligations of U.S. government-sponsored entities and agencies 28,156 — (3,780 ) 24,376 Obligations of state and political subdivisions 107,004 5 (14,251 ) 92,758 U.S. Government-sponsored mortgage-backed securities–residential 110,490 — (17,411 ) 93,079 U.S. Government-sponsored mortgage-backed securities– commercial 8,618 — (1,892 ) 6,726 U.S. Government-sponsored collateralized mortgage obligations– residential 42,025 — (4,883 ) 37,142 Other debt securities 17,319 — (1,246 ) 16,073 Total securities available-for-sale $ 322,529 $ 5 $ (44,116 ) $ 278,418 Held-to-Maturity Amortized Cost Gross Unrecognized Gains Gross Unrecognized Losses Fair Value September 30, 2022 Obligations of state and political subdivisions $ 7,769 $ — $ (647 ) $ 7,122 Available-for-sale Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value June 30, 2022 Obligation of U.S Treasury $ 8,909 $ — $ (462 ) $ 8,447 Obligations of U.S. government-sponsored entities and agencies 28,689 — (2,424 ) 26,265 Obligations of state and political subdivisions 105,977 129 (8,749 ) 97,357 U.S. Government-sponsored mortgage-backed securities – residential 113,812 13 (11,642 ) 102,183 U.S. Government-sponsored mortgage-backed securities – commercial 8,623 — (1,322 ) 7,301 U.S. Government-sponsored collateralized mortgage obligations – residential 40,952 1 (2,774 ) 38,179 Other debt securities 17,367 — (752 ) 16,615 Total available-for-sale securities $ 324,329 $ 143 $ (28,125 ) $ 296,347 Held-to-maturity Amortized Cost Gross Unrecognized Gains Gross Unrecognized Losses Fair Value June 30, 2022 Obligations of state and political subdivisions $ 7,874 $ 47 $ (90 ) $ 7,831 Proceeds from the sale of available-for-sale securities were as follows: Three Months Ended September 30, 2022 2021 Proceeds from sales $ 2,069 $ — Gross realized gains 7 — Gross realized losses 18 — The income tax provision related to the net realized loss amounted to $2 for the three September 30, 2022. The amortized cost and fair values of debt securities at September 30, 2022, may not Available-for-Sale Amortized Cost Estimated Fair Value Due in one year or less $ 1,851 $ 1,821 Due after one year through five years 32,354 30,568 Due after five years through ten years 54,329 48,751 Due after ten years 72,862 60,331 Total 161,396 141,471 U.S. Government-sponsored mortgage-backed and related securities 161,133 136,947 Total securities available-for-sale $ 322,529 $ 278,418 Held-to-Maturity Due after one year through five years $ 212 $ 209 Due after five years through ten years 4,212 3,454 Due after ten years 3,345 3,459 Total securities held-to-maturity $ 7,769 $ 7,122 Securities with a carrying value of approximately $132,950 and $126,679 were pledged at September 30, 2022 June 30, 2022, The following table summarizes the securities with unrealized losses at September 30, 2022 June 30, 2022, Less than 12 Months 12 Months or more Total Available-for-sale Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss September 30, 2022 Obligation of U.S. Treasury $ 8,264 $ (653 ) $ — $ — $ 8,264 $ (653 ) Obligations of U.S. government-sponsored entities and agencies 19,919 (2,842 ) 4,457 (938 ) 24,376 (3,780 ) Obligations of state and political subdivisions 83,601 (12,385 ) 6,088 (1,866 ) 89,689 (14,251 ) U.S. Government-sponsored mortgage-backed securities – residential 44,882 (6,608 ) 46,694 (10,803 ) 91,576 (17,411 ) U.S. Government-sponsored mortgage-backed securities – commercial 4,554 (1,261 ) 2,172 (631 ) 6,726 (1,892 ) Collateralized mortgage obligations - residential 27,449 (2,587 ) 9,693 (2,296 ) 37,142 (4,883 ) Other debt securities 7,098 (503 ) 8,975 (743 ) 16,073 (1,246 ) Total temporarily impaired $ 195,767 $ (26,839 ) $ 78,079 $ (17,277 ) $ 273,846 $ (44,116 ) Less than 12 Months 12 Months or more Total Held to Maturity Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss September 30, 2022 Obligations of state and political subdivisions 3,688 (489 ) 3,454 (158 ) 7,122 (647 ) Total temporarily impaired $ 3,688 $ (489 ) $ — $ (158 ) $ 7,122 $ (647 ) Less than 12 Months 12 Months or more Total Available-for-sale Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss June 30, 2022 Obligations of U.S. Treasury $ 8,447 $ (462 ) $ — $ — $ 8,447 $ (462 ) Obligations of U.S. government-sponsored entities and agencies 26,265 (2,424 ) — — 26,265 (2,424 ) Obligations of state and political subdivisions 80,445 (8,331 ) 2,047 (418 ) 82,492 (8,749 ) Mortgage-backed securities – residential 76,526 (7,586 ) 24,569 (4,056 ) 101,095 (11,642 ) Mortgage-backed securities – commercial 7,301 (1,322 ) — — 7,301 (1,322 ) Collateralized mortgage obligations - residential 30,729 (2,308 ) 2,713 (466 ) 33,442 (2,774 ) Other debt securities 16,156 (711 ) 459 (41 ) 16,615 (752 ) Total temporarily impaired $ 245,869 $ (23,144 ) $ 29,788 $ (4,981 ) $ 275,657 $ (28,125 ) Less than 12 Months 12 Months or more Total Held to Maturity Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss June 30, 2022 Obligations of state and political subdivisions 3,522 (90 ) — — 3,522 (90 ) Total temporarily impaired $ 3,522 $ (90 ) $ — $ — $ 3,522 $ (90 ) Management evaluates securities for other-than-temporary impairment (OTTI) on a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. The securities portfolio is evaluated for OTTI by segregating the portfolio into two 320, Accounting for Certain Investments in Debt and Equity Securities In determining OTTI under the ASC Topic 320 1 2 3 4 not At September 30 2022, September 30, 2022 not not not not not Equity Securities The Corporation owned equity securities with an amortized cost of $400 as of September 30, 2022 June 30, 2022. September 30, 2022 2021. three September 30, 2022 2021. September 30, 2022 September 30, 2021 Unrealized loss recognized on equity securities held at the end of the period $ (24 ) $ — |