Loans Receivable, Net - Recorded Investment in Non-Accrual Loans by Class of Loans (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment in Non-accrual Loans	$ 45,360,000	$ 43,374,000	$ 44,008,000
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment in Non-accrual Loans	4,328,000	4,540,000
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment in Non-accrual Loans	515,000	746,000
Residential Real Estate [Member] | Originated by Bank [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment in Non-accrual Loans	16,145,000	13,156,000
Residential Real Estate [Member] | Originated by Mortgage Company [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment in Non-accrual Loans	10,589,000	10,477,000
Residential Real Estate [Member] | Originated by Mortgage Company - Non-Prime [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment in Non-accrual Loans	1,479,000	2,888,000
Commercial Real Estate [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment in Non-accrual Loans	11,995,000	11,085,000
Commercial Real Estate [Member] | Construction and Land [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment in Non-accrual Loans	$ 309,000	$ 482,000