Loans Receivable, Net - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Receivables [Abstract]
Loans in the amount	$ 45,321,000		$ 45,360,000
Financing receivables 90 days past due and still accruing	0
Impaired loans on non-accrual commercial real estate, multi-family land, construction and commercial loans	250,000
Impaired loan portfolio total	41,662,000		39,903,000
Allocation allowance for loan losses	3,938,000		3,647,000
Average balance of impaired loans	40,441,000	38,187,000
Troubled debt restructuring loans	31,652,000		31,119,000
Troubled debt restructuring loans with accrual interest	21,435,000		21,456,000
Non-accrual loan total troubled debt restructurings	10,217,000		9,663,000
Specific reserves to loans accruing troubled debt restructurings	2,199,000		1,816,000
Loans classified as troubled debt restructurings	$ 21,435,000		$ 21,456,000