INCOME TAXES - Components of Net Deferred Tax Asset (Liability) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets:
Allowance for loan losses	$ 5,424	$ 7,776
Deferred compensation	528	510
Retirement plans and salary continuation	1,695	1,585
Share-based compensation	102	191
Off balance sheet commitment reserves	205	204
Nonaccrual loan interest	210	341
Net unrealized losses on securities available for sale	0	2,592
Goodwill	154	184
Bonus accrual	396	0
Low income housing credit carryforward	1,322	1,022
Alternative minimum tax credit carryforward	1,291	664
Charitable contribution carryforward	209	333
Net operating loss carryforward	6,606	8,169
Other	237us-gaap_DeferredTaxAssetsOther	178us-gaap_DeferredTaxAssetsOther
Total deferred tax assets	18,379us-gaap_DeferredTaxAssetsGross	23,749us-gaap_DeferredTaxAssetsGross
Valuation allowance	0	(18,964)
Net deferred tax assets	18,379us-gaap_DeferredTaxAssetsNet	4,785us-gaap_DeferredTaxAssetsNet
Deferred tax liabilities:
Depreciation	955	1,116
Net unrealized gains on securities available for sale	848	0
Mortgage servicing rights	606	582
Purchase accounting adjustments	421	495
Other	174us-gaap_DeferredTaxLiabilitiesOther	0us-gaap_DeferredTaxLiabilitiesOther
Net deferred tax asset	3,004us-gaap_DeferredIncomeTaxLiabilities	2,193us-gaap_DeferredIncomeTaxLiabilities
Net deferred tax asset	$ 15,375us-gaap_DeferredTaxAssetsLiabilitiesNet	$ 2,592us-gaap_DeferredTaxAssetsLiabilitiesNet

Deferred tax assets low income housing credit carry forward.

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Deferred tax assets non accrual loan interest.

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Deferred tax assets off balance sheet reserves.

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Deferred tax assets retirement plans and salary continuation.

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Deferred tax liabilities purchase accounting adjustments.

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Deferred tax liabilities unrealized gain on available for sale securities gross.

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Amount of deferred tax liability attributable to taxable temporary differences.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from employee bonuses.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the provision for loan losses.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from unrealized losses on available-for-sale securities.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount of deferred tax liability attributable to taxable temporary differences from mortgage servicing rights.

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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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