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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2018
Income Taxes  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Year ended December 31
(Dollars in thousands)20182017
Current income tax expense:
Federal$1,6852,782
State431499
Total current income tax expense2,1163,281
Deferred income tax expense (benefit):
Federal56384
State15(28)
Total deferred income tax expense71356
Total income tax expense $2,1873,637
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
20182017
Percent ofPercent of
pre-taxpre-tax
(Dollars in thousands)AmountearningsAmountearnings
Earnings before income taxes$11,02111,483
Income taxes at statutory rate2,31521.0%3,90434.0%
Tax-exempt interest(515)(4.7)(813)(7.0)
State income taxes, net of
federal tax effect3613.33252.8
Bank-owned life insurance(92)(0.8)(150)(1.3)
Federal tax reform impact3703.2
Other1181.01
Total income tax expense $2,18719.8%3,63731.7%
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
December 31
(Dollars in thousands)20182017
Deferred tax assets:
Allowance for loan losses$1,2031,195
Unrealized loss on securities1,262190
Other135216
Total deferred tax assets2,6001,601
Deferred tax liabilities:
Premises and equipment280241
Originated mortgage servicing rights362413
Other168158
Total deferred tax liabilities810812
Net deferred tax asset$1,790789
Schedule of Deferred Tax Asset Rollforward [Table Text Block]
Year ended December 31
(Dollars in thousands)20182017
Net deferred tax asset:
Balance, beginning of year$7891,280
Deferred tax expense related to continuing operations(71)(356)
Stockholders' equity, for accumulated other comprehensive loss (income)1,072(135)
Balance, end of year$1,790789