Allowance for Loan Losses (Impaired loans) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Impaired loans
Unpaid Contractual Principal Balance	$ 1,744	$ 1,687
Recorded Investment With No Related Allowance	1,082	1,173
Recorded Investment With Related Allowance	662	514
Related Allowance	496	308
Commercial and industrial [Member]
Impaired loans
Unpaid Contractual Principal Balance	686	592
Recorded Investment With No Related Allowance	24	78
Recorded Investment With Related Allowance	662	514
Related Allowance	496	308
Commercial and industrial [Member] | Commercial [Member]
Impaired loans
Unpaid Contractual Principal Balance	481	491
Recorded Investment With No Related Allowance	24	78
Recorded Investment With Related Allowance	457	413
Related Allowance	291	246
Commercial and industrial [Member] | SBA loans [Member]
Impaired loans
Unpaid Contractual Principal Balance	50
Recorded Investment With No Related Allowance
Recorded Investment With Related Allowance	50
Related Allowance	50
Commercial and industrial [Member] | Asset-based [Member]
Impaired loans
Unpaid Contractual Principal Balance	155	101
Recorded Investment With No Related Allowance
Recorded Investment With Related Allowance	155	101
Related Allowance	155	62
Commercial real estate [Member]
Impaired loans
Unpaid Contractual Principal Balance	1,058	1,095
Recorded Investment With No Related Allowance	1,058	1,095
Recorded Investment With Related Allowance
Related Allowance
Commercial real estate [Member] | SBA loans [Member]
Impaired loans
Unpaid Contractual Principal Balance
Recorded Investment With No Related Allowance
Recorded Investment With Related Allowance
Related Allowance
Commercial real estate [Member] | Commercial mortgages [Member]
Impaired loans
Unpaid Contractual Principal Balance	662	677
Recorded Investment With No Related Allowance	662	677
Recorded Investment With Related Allowance
Related Allowance
Commercial real estate [Member] | Religious organizations [Member]
Impaired loans
Unpaid Contractual Principal Balance	396	407
Recorded Investment With No Related Allowance	396	407
Recorded Investment With Related Allowance
Related Allowance