Commitments, Guarantees and Contingent Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Fixed Rate, Commitments to make loans	$ 41,090	$ 50,205
Fixed Rate, Unused lines of credit	19,227	21,975
Fixed Rate, Standby letters of credit	0	0
Fixed Rate, Total	60,317	72,180
Variable Rate, Commitments to make loans	46,655	48,035
Variable Rate, Unused lines of credit	262,028	228,269
Variable Rate, Standby letters of credit	16,652	18,166
Variable Rate, Total	$ 325,335	$ 294,470