Commitments and Contingencies Commitments by Type and Rate Type (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Schedule of Commitments by Type and Rate Type [Line Items]
Minimum fixed rate loan commitment	2.45%
Maximum fixed rate loan commitment	6.75%
Commercial and industrial
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	$ 1,053	$ 1,017
Variable Interest Rate	2,842	3,351
Commercial real estate - owner occupied
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	3,721	6,393
Variable Interest Rate	3,289	0
Commercial real estate - non-owner occupied
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	4,102	1,011
Variable Interest Rate	87	0
Commercial real estate - multifamily
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	842	2,755
Variable Interest Rate	21	0
Commercial construction and land development
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	1,000	0
Variable Interest Rate	2,428	856
Commercial participations
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	0	48
Variable Interest Rate	0	0
Retail
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	3,096	3,005
Variable Interest Rate	179	1,215
Credit enhancements
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	14,836	15,860
Variable Interest Rate	0	0
Letters of credit
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	0	0
Variable Interest Rate	2,221	3,313
Equity lines of credit
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	0	0
Variable Interest Rate	38,122	39,831
Commercial business lines
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	4,916	4,000
Variable Interest Rate	43,902	48,399
Construction loans
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	550	2,783
Variable Interest Rate	298	2,279
Consumer lines
Schedule of Commitments by Type and Rate Type [Line Items]
Fixed Interest Rate	27	24
Variable Interest Rate	$ 94	$ 98