Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] | Note 2. The Company invests in U.S. Treasury securities, U.S. agency and mortgage-backed securities, obligations of state and political subdivisions, and corporate debt securities. Amortized co sts, gross unrealized gains and losses, allowance for credit losses, an March 31, 2024 December 31, 2023 March 31, 2024 Amortized Cost Gross Unrealized Gains Gross Unrealized (Losses) Fair Value Allowance for Credit Losses Securities available for sale: U.S. Treasury securities $ 12,478 $ — $ (1,079 ) $ 11,399 $ — U.S. agency and mortgage-backed securities 93,915 50 (12,997 ) 80,968 — Obligations of states and political subdivisions 63,461 1 (8,154 ) 55,308 — Total securities available for sale $ 169,854 $ 51 $ (22,230 ) $ 147,675 $ — Securities held to maturity: U.S. Treasury securities $ 19,277 $ — $ (349 ) $ 18,928 $ — U.S. agency and mortgage-backed securities 92,019 — (10,033 ) 81,986 — Obligations of states and political subdivisions 11,645 40 (996 ) 10,689 (1 ) Corporate debt securities 3,000 — (514 ) 2,486 (115 ) Total securities held to maturity $ 125,941 $ 40 $ (11,892 ) $ 114,089 $ (116 ) Total securities $ 295,795 $ 91 $ (34,122 ) $ 261,764 $ (116 ) December 31, 2023 Amortized Cost Gross Gross Fair Value Allowance for Credit Losses Securities available for sale: U.S. Treasury securities $ 12,476 $ — $ (1,026 ) $ 11,450 $ — U.S. agency and mortgage-backed securities 96,937 55 (12,192 ) 84,800 — Obligations of states and political subdivisions 64,045 6 (7,444 ) 56,607 — Total securities available for sale $ 173,458 $ 61 $ (20,662 ) $ 152,857 $ — Securities held to maturity: U.S. Treasury securities $ 39,085 $ — $ (389 ) $ 38,696 $ — U.S. agency and mortgage-backed securities 94,617 — (8,992 ) 85,625 — Obligations of states and political subdivisions 11,649 107 (943 ) 10,813 — Corporate debt securities 3,000 — (520 ) 2,480 (107 ) Total securities held to maturity $ 148,351 $ 107 $ (10,844 ) $ 137,614 $ (107 ) Total securities $ 321,809 $ 168 $ (31,506 ) $ 290,471 $ (107 ) Information pertaining to securities with gross unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous loss position is as follows (in thousands): March 31, 2024 Less than 12 months 12 months or more Total Fair Value Unrealized (Loss) Fair Value Unrealized (Loss) Fair Value Unrealized (Loss) Securities available for sale: U.S. Treasury securities $ — $ — $ 11,399 $ (1,079 ) $ 11,399 $ (1,079 ) U.S. agency and mortgage-backed securities 1,268 (13 ) 75,506 (12,984 ) 76,774 (12,997 ) Obligations of states and political subdivisions 5,341 (195 ) 48,276 (7,959 ) 53,617 (8,154 ) Total securities available for sale $ 6,609 $ (208 ) $ 135,181 $ (22,022 ) $ 141,790 $ (22,230 ) December 31, 2023 Less than 12 months 12 months or more Total Fair Value Unrealized (Loss) Fair Value Unrealized (Loss) Fair Value Unrealized (Loss) Securities available for sale: U.S. Treasury securities $ — $ — $ 11,450 $ (1,026 ) $ 11,450 $ (1,026 ) U.S. agency and mortgage-backed securities 1,281 (29 ) 78,800 (12,163 ) 80,081 (12,192 ) Obligations of states and political subdivisions 4,469 (215 ) 47,004 (7,229 ) 51,473 (7,444 ) Total securities available for sale $ 5,750 $ (244 ) $ 137,254 $ (20,418 ) $ 143,004 $ (20,662 ) The tables above provide information about securities that have been in an unrealized loss position for less than twelve twelve Presently, the Company does not not Accrued interest receivable on securities available for sale and securities held to maturity totaled $756 thousand and $548 thousand, respectively, at March 31, 2024 . Accrued interest on debt securities is included in accrued interest receivable on the Company's consolidated balance sheets. At March 31, 2024 , there were three three rage a March 31, 2024 . One hundred percent of the Company’s investment portfolio was considered investment grade at December 31, 2023 . The weighted-average re-pricing term of the portfolio was 5.9 years at December 31, 2023 . The unrealized losses at March 31, 2024 in the U.S. Treasury securities portfolio, U.S. agency and mortgage-backed securities portfolio, and obligations of states and political subdivisions portfolio were related to changes in market interest rates and not On September 1, 2022, first three 2024. may The amortized cost and fair value of securities at March 31, 2024 may Available for Sale Held to Maturity Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 796 $ 783 $ 10,820 $ 10,698 Due after one year through five years 28,704 26,521 23,107 21,835 Due after five years through ten years 32,673 29,684 17,972 16,117 Due after ten years 107,681 90,687 74,042 65,439 $ 169,854 $ 147,675 $ 125,941 $ 114,089 Federal Home Loan Bank, Federal Reserve Bank, and Community Bankers’ Bank stock are generally viewed as long-term investments and as restricted securities, which are carried at cost, because there is a minimal market for the stock. Therefore, when evaluating restricted securities for impairment, their value is based on the ultimate recoverability of the par value rather than by recognizing temporary declines in value. The composition of restricted securities at March 31, 2024 December 31, 2023 March 31, 2024 December 31, 2023 Federal Home Loan Bank stock $ 999 $ 965 Federal Reserve Bank stock 981 981 Community Bankers’ Bank stock 132 132 $ 2,112 $ 2,078 The Company also holds limited partnership investments in Small Business Investment Companies (SBICs), which are included in other assets in the Consolidated Balance Sheets. The limited partnership investments are measured as equity investments without readily determinable fair values at their cost, less any impairment. The amounts included in other assets for the limited partnership investments were $642 thousand a March 31, 2024 December 31, 2023 Credit Quality Indicators & Allowance for Credit Losses - HTM The Company monitors the credit quality of the debt securities held to maturity through the use of credit ratings from Moody's, S&P, and Egan-Jones. The Company monitors the credit ratings on a quarterly basis. The following table summarizes the amortized cost of debt securities held to maturity at March 31, 2024 , aggregated by credit quality indicators. U.S. Treasury securities U.S. agency and mortgage-backed securities Obligations of states and political subdivisions Corporate debt securities Total Held to Maturity Securities March 31, 2024 Aaa $ 19,277 $ 22,994 $ 2,802 $ — $ 45,073 Aa1 / Aa2 / Aa3 — — 8,843 — 8,843 Baa1 / Baa2 / Baa3 — — — 3,000 3,000 Not rated - Agency (1) — 69,025 — — 69,025 Total $ 19,277 $ 92,019 $ 11,645 $ 3,000 $ 125,941 December 31, 2023 Aaa $ 39,085 $ 22,936 $ 2,807 $ — $ 64,828 Aa1 / Aa2 / Aa3 — — 8,842 — 8,842 Baa1 / Baa2 / Baa3 — — — 3,000 3,000 Not rated - Agency (1) — 71,681 — — 71,681 Total $ 39,085 $ 94,617 $ 11,649 $ 3,000 $ 148,351 ________________________________________ ( 1 Generally considered not The following table summarizes the change in the allowance for credit losses on held to maturity securities for the three March 31, 2024 . U.S. Treasury securities U.S. agency and mortgage-backed securities Obligations of states and political subdivisions Corporate debt securities Total Held to Maturity Securities Balance, December 31, 2023 $ — $ — $ — $ 107 $ 107 Provision for credit losses — — 1 8 9 Charge-offs of securities — — — — — Recoveries — — — — — Balance, March 31, 2024 $ — $ — $ 1 $ 115 $ 116 At March 31, 2024 , the Company had no 30 no March 31, 2024 . |