LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Loan Portfolio Summarized by Aging Categories of Performing Loans and Nonaccrual Loans (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 712,234	$ 688,902
30-59 Days Past Due	1,539	1,203
60-89 Days Past Due	92	409
90+ (still accruing) Days Past Due	0	0
Total Past Due	1,631	1,612
Non- Accrual	13,888	14,432
Total Loans	727,753	704,946
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	340,069	322,006
Commercial real estate \| Owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	108,175	97,571
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90+ (still accruing) Days Past Due	0	0
Total Past Due	0	0
Non- Accrual	3,224	3,288
Total Loans	111,399	100,859
Commercial real estate \| Non-owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	149,212	142,621
30-59 Days Past Due	73	0
60-89 Days Past Due	0	0
90+ (still accruing) Days Past Due	0	0
Total Past Due	73	0
Non- Accrual	1,636	1,680
Total Loans	150,921	144,301
Commercial real estate \| Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	28,222	27,211
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90+ (still accruing) Days Past Due	0	0
Total Past Due	0	0
Non- Accrual	721	320
Total Loans	28,943	27,531
Commercial real estate \| Non-owner occupied residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	47,799	47,706
30-59 Days Past Due	0	109
60-89 Days Past Due	45	0
90+ (still accruing) Days Past Due	0	0
Total Past Due	45	109
Non- Accrual	962	1,500
Total Loans	48,806	49,315
Acquisition and development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	32,122	30,161
Acquisition and development \| 1-4 family residential construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	5,883	5,924
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90+ (still accruing) Days Past Due	0	0
Total Past Due	0	0
Non- Accrual	0	0
Total Loans	5,883	5,924
Acquisition and development \| Commercial and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	26,158	24,114
30-59 Days Past Due	30	0
60-89 Days Past Due	0	0
90+ (still accruing) Days Past Due	0	0
Total Past Due	30	0
Non- Accrual	51	123
Total Loans	26,239	24,237
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	46,526	46,558
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90+ (still accruing) Days Past Due	0	0
Total Past Due	0	0
Non- Accrual	2,216	2,437
Total Loans	48,742	48,995
Municipal
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	60,661	61,191
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90+ (still accruing) Days Past Due	0	0
Total Past Due	0	0
Non- Accrual	0	0
Total Loans	60,661	61,191
Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	240,287	236,702
Residential mortgage \| First lien
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	120,451	120,806
30-59 Days Past Due	930	776
60-89 Days Past Due	47	400
90+ (still accruing) Days Past Due	0	0
Total Past Due	977	1,176
Non- Accrual	4,324	4,509
Total Loans	125,752	126,491
Residential mortgage \| Home equity - term
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	19,543	20,640
30-59 Days Past Due	209	135
60-89 Days Past Due	0	0
90+ (still accruing) Days Past Due	0	0
Total Past Due	209	135
Non- Accrual	160	70
Total Loans	19,912	20,845
Residential mortgage \| Home equity - lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	93,769	88,745
30-59 Days Past Due	284	142
60-89 Days Past Due	0	0
90+ (still accruing) Days Past Due	0	0
Total Past Due	284	142
Non- Accrual	570	479
Total Loans	94,623	89,366
Installment and other loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	5,835	5,815
30-59 Days Past Due	13	41
60-89 Days Past Due	0	9
90+ (still accruing) Days Past Due	0	0
Total Past Due	13	50
Non- Accrual	24	26
Total Loans	$ 5,872	$ 5,891

Financing receivables that are less than 60 days past due but more than 29 days past due.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

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Recorded investment in financing receivables that are 90 days or more past due and still accruing.

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Financing receivables that are current.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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