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INCOME TAXES - Components of Net Deferred Tax Asset (Detail) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Deferred tax assets:    
Allowance for loan losses $ 5,078 $ 5,111
Deferred compensation 546 547
Retirement plans and salary continuation 1,865 1,824
Share-based compensation 417 343
Off balance sheet reserves 224 218
Nonaccrual loan interest 315 246
Goodwill 116 124
Bonus accrual 69 359
Low income housing credit carryforward 1,735 1,652
Alternative minimum tax credit carryforward 2,262 2,195
Charitable contribution carryforward 69 211
Net operating loss carryforward 3,798 4,431
Other 190 182
Total deferred tax assets 16,684 17,443
Deferred tax liabilities:    
Depreciation 771 815
Net unrealized gains on securities available for sale 2,387 646
Mortgage servicing rights 699 669
Purchase accounting adjustments 336 352
Other 180 181
Total deferred tax liabilities 4,373 2,663
Net deferred tax asset $ 12,311 $ 14,780