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INCOME TAXES (Tables)
12 Months Ended
Dec. 31, 2018
Income Tax Disclosure [Abstract]  
Summary of Income Tax Expense
The following table summarizes income tax expense for years ended December 31. 
(Dollars in thousands)201820172016
Current expense$1,097 $1,260 $1,498 
Deferred expense (benefit)543 443 (232)
Expense due to enactment of federal tax reform legislation2,635 
Income tax expense$1,640 $4,338 $1,266 
Reconciliation of Effective Income Tax Rate to Statutory Federal Rate
The following table reconciles the Company's effective income tax rate to its statutory federal rate for years ended December 31. 
201820172016
Statutory federal tax rate21.0 %34.0 %34.0 %
Increase (decrease) resulting from:
Tax exempt interest income(7.7)%(13.0)%(16.0)%
Income from life insurance(1.7)%(2.4)%(4.7)%
Disallowed interest expense0.8 %1.0 %1.0 %
Low-income housing credits and related expense(2.5)%(4.6)%(7.2)%
Merger related0.6 %0.0 %0.0 %
Expense due to enactment of federal tax reform legislation0.0 %21.2 %0.0 %
Regulatory settlement0.0 %0.0 %4.3 %
Change in statutory federal tax rate0.0 %0.0 %2.3 %
Other0.9 %(1.3)%2.3 %
Effective income tax rate11.4 %34.9 %16.0 %
Summary of Deferred Tax Assets and Liabilities
The following table summarizes the Company's deferred tax assets and liabilities at December 31.
 
(Dollars in thousands)20182017
Deferred tax assets:
Allowance for loan losses$3,143 $2,919 
Deferred compensation723 355 
Retirement and salary continuation plans1,416 1,301 
Share-based compensation742 597 
Off-balance sheet reserves219 207 
Nonaccrual loan interest537 258 
Net unrealized losses on securities available for sale791 
Purchase accounting adjustments1,795 39 
Bonus accrual470 25 
Low-income housing credit carryforward641 2,313 
Other321 390 
Total deferred tax assets10,798 8,404 
Deferred tax liabilities:
Depreciation458 488 
Net unrealized gains on securities available for sale757 
Mortgage servicing rights590 536 
Purchase accounting adjustments1,021 251 
Other150 122 
Total deferred tax liabilities2,219 2,154 
Net deferred tax asset, included in Other Assets$8,579 $6,250