Loans Receivable (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Jun. 30, 2013		Dec. 31, 2012
Mortgage loans:
Commercial real estate	$ 74,383	[1]	$ 75,210	[1]
Construction	414		59
Total mortgage loans	83,767		84,974
Commercial nonreal estate	9,120	[1]	9,024	[1]
Consumer loans:
Home equity	13,045	[1]	14,063	[1]
Consumer and installment	17,100		19,468
Consumer lines of credit	267		267
Total consumer loans	30,412	[1]	33,798	[1]
Total loans	123,299		127,796
Unamortized loan discount	(169)		(181)
Loans in process	1,141
Allowance for loan losses	(4,312)		(4,367)
Net deferred loan origination costs	129		166
Loans, net of ALL	120,088		123,414
Weighted-average interest rate of loans	4.90%		5.15%
Fixed Rate Residential Mortgage
Mortgage loans:
Residential	5,740		6,329
Adjustable Rate Residential Mortgage
Mortgage loans:
Residential	$ 3,230		$ 3,376

[1] Credit quality indicators are reviewed and updated as applicable on an ongoing basis in accordance with credit policies.