Loans Receivable, Net - Additional Information (Detail) (USD $)	0 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Receivables [Abstract]
Loans with non-accrual of interest			$ 40,699,000		$ 40,699,000		$ 45,360,000
Financing receivables 90 days past due and still accruing			0		0
Impaired loans on non-accrual commercial real estate, multi-family, land, construction and commercial loans					250,000
Impaired loan portfolio total			42,382,000		42,382,000		39,903,000
Allocation in allowance for loan losses			4,069,000		4,069,000		3,647,000
Average balance of impaired loans			42,835,000	37,549,000	42,402,000	38,228,000
Troubled debt restructuring loans			30,047,000		30,047,000		31,119,000
Troubled debt restructuring loans with accrual interest			23,000,000		23,000,000		21,456,000
Non-accrual loan total troubled debt restructurings	7,047,000	9,663,000
Specific reserves to loans accruing troubled debt restructurings			1,521,000		1,521,000		1,816,000
Loans classified as troubled debt restructurings			$ 23,000,000		$ 23,000,000		$ 21,456,000