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Fair Value (Tables)	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Quoted Prices in Significant Active Markets Other Significant for Observable Unobservable Identical Assets Inputs Inputs (Dollars in thousands) Amount (Level 1) (Level 2) (Level 3) June 30, 2023: Securities available-for-sale: Agency obligations  $ 125,152 — 125,152 — Agency MBS 206,980 — 206,980 — State and political subdivisions 61,947 — 61,947 — Total securities available-for-sale 394,079 — 394,079 — Total assets at fair value $ 394,079 — 394,079 — December 31, 2022: Securities available-for-sale: Agency obligations  $ 125,617 — 125,617 — Agency MBS 218,160 — 218,160 — State and political subdivisions 61,527 — 61,527 — Total securities available-for-sale 405,304 — 405,304 — Total assets at fair value $ 405,304 — 405,304 —
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block]	Quoted Prices in Active Markets Other Significant for Observable Unobservable Carrying Identical Assets Inputs Inputs (Dollars in thousands) Amount (Level 1) (Level 2) (Level 3) June 30, 2023: Loans, net (1) 997 — — 997 Other assets (2) 1,050 — — 1,050 Total assets at fair value $ 2,047 — — 2,047 December 31, 2022: Loans, net (3) 2,054 — — 2,054 Other assets (2) 1,151 — — 1,151 Total assets at fair value $ 3,205 — — 3,205 (1) Loans considered collateral dependent under ASC 326. (2) Represents MSRs, net, carried at lower of cost or estimated fair value. (3) Loans considered impaired under ASC 310-10-35 Receivables, prior to the adoption of ASC 326. This amount reflects the recorded  investment in impaired loans, net of any related allowance for loan losses.
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]	Range of Weighted  Carrying  Significant  Unobservable Average (Dollars in thousands) Amount Valuation Technique Unobservable Input Inputs of Input June 30, 2023: Collateral dependent loans $ 997 Appraisal Appraisal discounts 10.0 - 10.0 % 10.0 % Mortgage servicing rights, net 1,050 Discounted cash flow Prepayment speed or CPR 6.1 - 19.7 7.5 Discount rate 9.5 - 11.5 9.5 December 31, 2022: Impaired loans $ 2,054 Appraisal Appraisal discounts 10.0 - 10.0 % 10.0 % Mortgage servicing rights, net 1,151 Discounted cash flow Prepayment speed or CPR 5.2 - 18.6 7.5 Discount rate 9.5 - 11.5 9.5
Financial Instruments [Table Text Block]	Fair Value Hierarchy Carrying Estimated Level 1 Level 2 Level 3 (Dollars in thousands) amount fair value inputs inputs Inputs June 30, 2023: Financial Assets: Loans, net (1) $ 513,777 $ 482,344 $ — $ — $ 482,344 Financial Liabilities: Time Deposits $ 174,529 $ 170,342 $ — $ 170,342 $ — December 31, 2022: Financial Assets: Loans, net (1) $ 498,693 $ 484,007 $ — $ — $ 484,007 Financial Liabilities: Time Deposits $ 150,375 $ 150,146 $ — $ 150,146 $ — (1) Represents loans, net of allowance for credit losses. The fair value of loans was measured using an exit price notion.

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- Definition

The entire disclosure for financial instruments. This disclosure includes, but is not limited to, fair value measurements of short and long term marketable securities, international currencies forward contracts, and auction rate securities. Financial instruments may include hedging and non-hedging currency exchange instruments, derivatives, securitizations and securities available for sale at fair value. Also included are investment results, realized and unrealized gains and losses as well as impairments and risk management

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Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique used to measure similar asset in prior period by class of asset or liability on non-recurring basis.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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