Loans - Troubled Debt Restructurings That Subsequently Defaulted (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014 Contract	Dec. 31, 2013 Contract	Dec. 31, 2012 Contract
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings that Subsequently Defaulted, Number of Contracts	0	0	6
TDR that Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 3,077
Commercial | Asset Quality Rating - Substandard
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings that Subsequently Defaulted, Number of Contracts	0	0	2
TDR that Subsequently Defaulted, Recorded Investment	0	0	300
Real Estate Construction One-To- Four Family | Asset Quality Rating - Substandard
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings that Subsequently Defaulted, Number of Contracts	0	0	1
TDR that Subsequently Defaulted, Recorded Investment	0	0	794
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Substandard
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings that Subsequently Defaulted, Number of Contracts	0	0	1
TDR that Subsequently Defaulted, Recorded Investment	0	0	846
Real Estate Term Other | Asset Quality Rating - Substandard
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings that Subsequently Defaulted, Number of Contracts	0	0	1
TDR that Subsequently Defaulted, Recorded Investment	0	0	1,044
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Pass
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings that Subsequently Defaulted, Number of Contracts	0	0	1
TDR that Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 93