Loans Receivable, Net - Risk Category of Loans by Class of Loans (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items]
Loan	$ 589,490	$ 533,122
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	60,545	57,967
Commercial Real Estate [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	502,868	463,287
Commercial Real Estate [Member] | Construction and Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	26,077	11,868
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	555,542	497,614
Pass [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	59,089	57,341
Pass [Member] | Commercial Real Estate [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	471,435	429,393
Pass [Member] | Commercial Real Estate [Member] | Construction and Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	25,018	10,880
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	1,070	2,281
Special Mention [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	1,070
Special Mention [Member] | Commercial Real Estate [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan		1,775
Special Mention [Member] | Commercial Real Estate [Member] | Construction and Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan		506
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	32,021	32,148
Substandard [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	386	391
Substandard [Member] | Commercial Real Estate [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	30,576	31,275
Substandard [Member] | Commercial Real Estate [Member] | Construction and Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	1,059	482
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	857	1,079
Doubtful [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan		235
Doubtful [Member] | Commercial Real Estate [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan	$ 857	$ 844