Loans and Allowance - Subsequent Default (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015 loan	Mar. 31, 2014 loan
Financing Receivable, Modifications [Line Items]
Number of Loans	1	2
Recorded Balance	$ 6	$ 203
Commercial and industrial loans
Financing Receivable, Modifications [Line Items]
Number of Loans		1
Recorded Balance		146
Nonimpaired Loans | Real estate loans - Home Equity
Financing Receivable, Modifications [Line Items]
Number of Loans	1
Recorded Balance	6
Nonimpaired Loans | Real estate loans - Residential
Financing Receivable, Modifications [Line Items]
Number of Loans		1
Recorded Balance		$ 57