Loans Receivable (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Jun. 30, 2012		Dec. 31, 2011
Mortgage loans:
Commercial real estate	$ 87,309	[1]	$ 97,547	[1]
Construction			308
Total mortgage loans	98,198		109,885
Commercial non-real estate	10,392	[1]	12,939	[1]
Consumer loans:
Home equity	14,436	[1]	14,590	[1]
Consumer and installment	21,790		22,939
Consumer lines of credit	283		300
Total consumer loans	36,509	[1]	37,829	[1]
Total loans	145,099		160,653
Unamortized loan discount	(210)		(231)
Allowance for loan losses	(4,576)		(4,549)
Net deferred loan origination costs	144		146
Total, net	140,457		156,019
Weighted-average interest rate of loans	4.68%		5.08%
Fixed Rate Residential Mortgage
Mortgage loans:
Residential	7,301		8,063
Adjustable Rate Residential Mortgage
Mortgage loans:
Residential	$ 3,588		$ 3,967

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