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Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Income Taxes
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Year ended December 31 (Dollars in thousands) 2021 2020 Current income tax expense: Federal $ 833 1,459 State 295 476 Total current income tax expense 1,128 1,935 Deferred income tax benefit: Federal 220 (262) State 58 (68) Total deferred income tax expense (benefit) 278 (330) Total income tax expense  $ 1,406 1,605
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	2021 2020 Percent of Percent of pre-tax pre-tax (Dollars in thousands) Amount earnings Amount earnings Earnings before income taxes $ 9,445 9,059 Income taxes at statutory rate 1,983 21.0 % 1,902 21.0 % Tax-exempt interest (514) (5.4) (489) (5.4) State income taxes, net of  federal tax effect 352 3.7 345 3.8 New Markets Tax Credit (356) (3.8) — — Bank-owned life insurance (85) (0.9) (152) (1.7) Other 26 0.3 (1) — Total income tax expense  $ 1,406 14.9 % 1,605 17.7 %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	December 31 (Dollars in thousands) 2021 2020 Deferred tax assets: Allowance for loan losses $ 1,240 1,411 Accrued bonus  192 183 Right of use liability 178 204 Other 77 91 Total deferred tax assets 1,687 1,889 Deferred tax liabilities: Premises and equipment 200 199 Unrealized gain on securities 298 2,548 Originated mortgage servicing rights 329 334 Right of use asset 173 198 New Markets Tax Credit investment 89 — Other 163 147 Total deferred tax liabilities 1,252 3,426 Net deferred tax asset (liability) $ 435 (1,537)
Schedule of Deferred Tax Asset Rollforward [Table Text Block]	Year ended December 31 (Dollars in thousands) 2021 2020 Net deferred tax asset (liability): Balance, beginning of year $ (1,537) (9) Deferred tax (expense) benefit related to continuing operations (278) 330 Stockholders' equity, for accumulated other comprehensive loss (income) 2,250 (1,858) Balance, end of year $ 435 (1,537)

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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