Nature of Operations and Summary of Significant Accounting Policies (Equity Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
FHLB Stock	$ 11,900	$ 11,700
FRB Stock	1,999	1,999
Other	334	338
Total	21,694	22,286
Investment in Corporate Settlement Solutions [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investments	7,461	7,249
Investment in Valley Financial Corporation [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 0	$ 1,000