Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
	Nov. 30, 2011	Dec. 31, 2013 Segment Branch	Dec. 31, 2012
Significant Accounting Policies [Line Items]
Number of branch offices		28
Period for average loss experience		3 years
Loans charge off delinquent period		90 days
Consumer loans, loans and lines		$ 100,000
Equity lines of credit		100,000
Unrecognized tax benefits		0	0
Accrued expenses interest and penalties on unrecognized		$ 0	$ 0
Significant increase in the total amount of unrecognized tax benefits period		12 months
Stock dividends	10.00%
Number of operating segment		1
Board of Directors [Member]
Significant Accounting Policies [Line Items]
Stock dividends	10.00%
Furniture, Fixtures and Equipment [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of assets		3 years
Furniture, Fixtures and Equipment [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of assets		5 years
Buildings [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of assets		31 years 6 months
Westchester County, New York [Member]
Significant Accounting Policies [Line Items]
Number of branch offices		17
Rockland County, New York [Member]
Significant Accounting Policies [Line Items]
Number of branch offices		2
New York City [Member]
Significant Accounting Policies [Line Items]
Number of branch offices		9