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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2017
Income Taxes |
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  |  |  | Year ended December 31
(Dollars in thousands) | 2017 | 2016
Current income tax expense: |  |  |  |  |
| Federal | $ | 2,782 |  |  | 2,143
| State |  | 499 |  |  | 498
|  | Total current income tax expense |  | 3,281 |  |  | 2,641
Deferred income tax expense (benefit): |  |  |  |  |
| Federal |  | 384 |  |  | 464
| State |  | (28) |  |  | (3)
|  | Total deferred income tax expense |  | 356 |  |  | 461
| Total income tax expense | $ | 3,637 |  |  | 3,102
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  |  |  |  | 2017 |  | 2016
|  |  |  |  |  |  | Percent of |  |  |  |  | Percent of |
|  |  |  |  |  |  | pre-tax |  |  |  |  | pre-tax |
(Dollars in thousands) |  |  | Amount |  | earnings |  |  | Amount |  | earnings |
Earnings before income taxes |  | $ | 11,483 |  |  |  |  | 11,252 |  |  |
Income taxes at statutory rate |  |  | 3,904 |  | 34.0 | % |  | 3,826 |  | 34.0 | %
| Tax-exempt interest |  |  | (813) |  | (7.0) |  |  | (857) |  | (7.6) |
| State income taxes, net of |  |  |  |  |  |  |  |  |  |  |
|  | federal tax effect |  |  | 325 |  | 2.8 |  |  | 325 |  | 2.9 |
| Bank-owned life insurance |  |  | (150) |  | (1.3) |  |  | (155) |  | (1.4) |
| Federal tax reform impact |  |  | 370 |  | 3.2 |  |  | — |  | — |
| Other |  |  | 1 |  | — |  |  | (37) |  | (0.3) |
Total income tax expense |  | $ | 3,637 |  | 31.7 | % |  | 3,102 |  | 27.6 | %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  |  |  | December 31
(Dollars in thousands) | 2017 | 2016
Deferred tax assets: |  |  |  |  |
| Allowance for loan losses | $ | 1,195 |  |  | 1,713
| Unrealized loss on securities |  | 190 |  |  | 414
| Other |  | 216 |  |  | 316
|  | Total deferred tax assets |  | 1,601 |  |  | 2,443
Deferred tax liabilities: |  |  |  |  |
| Premises and equipment |  | 241 |  |  | 205
| Originated mortgage servicing rights |  | 413 |  |  | 721
| Other |  | 158 |  |  | 237
|  | Total deferred tax liabilities |  | 812 |  |  | 1,163
|  | Net deferred tax asset | $ | 789 |  |  | 1,280
Schedule of Deferred Tax Asset Rollforward [Table Text Block] |
|  |  |  |  | Year ended December 31
(Dollars in thousands) | 2017 | 2016
Net deferred tax asset: |  |  |  |  |
Balance, beginning of year | $ | 1,280 |  |  | 195
Deferred tax expense related to continuing operations |  | (356) |  |  | (461)
Stockholders' equity, for accumulated other comprehensive (income) loss |  | (135) |  |  | 1,546
Balance, end of year | $ | 789 |  |  | 1,280

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32639-109319 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 + Details
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