Loans Receivable (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Changes in allowance for loan losses and recorded investment in loans
Ending balance: individually evaluated for impairment	$ 1,437	$ 1,173
Ending balance: collectively evaluated for impairment	5,304	5,423
Ending balance: loans acquired with deteriorated credit quality
Loans Receivable:
Loans Receivable, Ending Balance	684,639	670,334
Ending balance: individually evaluated for impairment	16,555	15,603
Ending balance: collectively evaluated for impairment	668,084	654,731
Ending balance: loans acquired with deteriorated credit quality
Commercial [Member]
Changes in allowance for loan losses and recorded investment in loans
Ending balance: individually evaluated for impairment	3	2
Ending balance: collectively evaluated for impairment	431	336
Ending balance: loans acquired with deteriorated credit quality
Loans Receivable:
Loans Receivable, Ending Balance	52,375	50,337
Ending balance: individually evaluated for impairment	38	63
Ending balance: collectively evaluated for impairment	52,337	50,274
Ending balance: loans acquired with deteriorated credit quality
Consumer [Member]
Changes in allowance for loan losses and recorded investment in loans
Ending balance: individually evaluated for impairment	48	50
Ending balance: collectively evaluated for impairment	956	1,103
Ending balance: loans acquired with deteriorated credit quality
Loans Receivable:
Loans Receivable, Ending Balance	128,682	128,787
Ending balance: individually evaluated for impairment	152	153
Ending balance: collectively evaluated for impairment	128,530	128,634
Ending balance: loans acquired with deteriorated credit quality
Residential [Member]
Changes in allowance for loan losses and recorded investment in loans
Ending balance: individually evaluated for impairment		271
Ending balance: collectively evaluated for impairment	2,519	2,405
Ending balance: loans acquired with deteriorated credit quality
Loans Receivable:
Loans Receivable, Ending Balance	404,708	390,456
Ending balance: individually evaluated for impairment	2,508	1,364
Ending balance: collectively evaluated for impairment	402,200	389,092
Ending balance: loans acquired with deteriorated credit quality
Unallocated [Member]
Changes in allowance for loan losses and recorded investment in loans
Ending balance: individually evaluated for impairment
Ending balance: collectively evaluated for impairment	485	418
Ending balance: loans acquired with deteriorated credit quality
Loans Receivable:
Loans Receivable, Ending Balance
Ending balance: individually evaluated for impairment
Ending balance: collectively evaluated for impairment
Ending balance: loans acquired with deteriorated credit quality
Commercial Real Estate [Member]
Changes in allowance for loan losses and recorded investment in loans
Ending balance: individually evaluated for impairment	1,386	850
Ending balance: collectively evaluated for impairment	913	1,161
Ending balance: loans acquired with deteriorated credit quality
Loans Receivable:
Loans Receivable, Ending Balance	98,874	83,447
Ending balance: individually evaluated for impairment	13,857	14,023
Ending balance: collectively evaluated for impairment	85,017	86,731
Ending balance: loans acquired with deteriorated credit quality