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Fair Value (Tables)	6 Months Ended
	Jun. 30, 2021
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, 2021: Securities available-for-sale: Agency obligations  $ 111,487 — 111,487 — Agency RMBS 198,849 — 198,849 — State and political subdivisions 74,529 — 74,529 — Total securities available -for-sale 384,865 — 384,865 — Total assets at fair value $ 384,865 — 384,865 — December 31, 2020: Securities available-for-sale: Agency obligations  $ 97,448 — 97,448 — Agency RMBS 163,470 — 163,470 — State and political subdivisions 74,259 — 74,259 — Total securities available -for-sale 335,177 — 335,177 — Total assets at fair value $ 335,177 — 335,177 —
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, 2021: Loans held for sale $ 1,367 — 1,367 — Loans, net (1) 296 — — 296 Other assets (2) 1,360 — — 1,360 Total assets at fair value $ 3,023 — 1,367 1,656 December 31, 2020: Loans held for sale $ 3,418 — 3,418 — Loans, net (1) 319 — — 319 Other assets (2) 1,330 — — 1,330 Total assets at fair value $ 5,067 — 3,418 1,649 (1) Loans considered impaired under ASC 310-10-35 Receivables. This amount reflects the recorded investment in impaired loans, net of any related allowance for loan losses. (2) Represents MSRs, net. These are carried at lower of cost or estimated fair value.
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]	Weighted  Carrying  Significant  Average (Dollars in thousands) Amount Valuation Technique Unobservable Input Range of Input June 30, 2021: Impaired loans $ 296 Appraisal Appraisal discounts 10.0 - 10.0 % 10.0 % Mortgage servicing rights, net 1,360 Discounted cash flow Prepayment Speed or CPR 7.7 - 15.7 15.1 Discount rate 9.5 - 11.5 9.5 December 31, 2020: Impaired loans $ 319 Appraisal Appraisal discounts 10.0 - 10.0 % 10.0 % Mortgage servicing rights, net 1,330 Discounted cash flow Prepayment Speed or CPR 18.2 - 36.4 20.7 Discount rate 10.0 - 12.0 10.0
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, 2021: Financial Assets: Loans, net (1) $ 451,877 $ 448,540 $ — $ — $ 448,540 Loans held for sale 1,367 1,415 — 1,415 — Financial Liabilities: Time Deposits $ 159,011 $ 160,247 $ — $ 160,247 $ — December 31, 2020: Financial Assets: Loans, net (1) $ 456,082 $ 451,816 $ — $ — $ 451,816 Loans held for sale 3,418 3,509 — 3,509 — Financial Liabilities: Time Deposits $ 160,401 $ 162,025 $ — $ 162,025 $ — (1) Represents loans, net of unearned income and the allowance for loan 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 http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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-Name Accounting Standards Codification
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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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-Publisher FASB
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-SubTopic 10
-Section 50
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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 http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
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-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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