Portfolio Loans - Summary of Recorded Investment by Category for Portfolio Loans Restructured and Subsequently Defaulted (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014 loan	Dec. 31, 2013 loan
Schedule of Financing Receivables, Troubled Debt Restructurings - Suibsequent Defaults [Line Items]
Number of Loans	1	3
Recorded Balance	$ 241	$ 1,771
Commercial & Industrial
Schedule of Financing Receivables, Troubled Debt Restructurings - Suibsequent Defaults [Line Items]
Number of Loans	0	0
Recorded Balance	0	0
Commercial Real Estate Owner Occupied
Schedule of Financing Receivables, Troubled Debt Restructurings - Suibsequent Defaults [Line Items]
Number of Loans	0	1
Recorded Balance	0	192
Commercial Real Estate Investor Owned
Schedule of Financing Receivables, Troubled Debt Restructurings - Suibsequent Defaults [Line Items]
Number of Loans	0	0
Recorded Balance	0	0
Construction and Land Development
Schedule of Financing Receivables, Troubled Debt Restructurings - Suibsequent Defaults [Line Items]
Number of Loans	1	0
Recorded Balance	241	0
Residential
Schedule of Financing Receivables, Troubled Debt Restructurings - Suibsequent Defaults [Line Items]
Number of Loans	0	2
Recorded Balance	0	1,579
Consumer & Other
Schedule of Financing Receivables, Troubled Debt Restructurings - Suibsequent Defaults [Line Items]
Number of Loans	0	0
Recorded Balance	$ 0	$ 0