Loans and Allowance for Loan Losses, Troubled Debt Restructurings (Details) (USD $)	3 Months Ended						3 Months Ended
	Mar. 31, 2014 Contract	Mar. 31, 2013 Contract	Mar. 31, 2014 Lessors of Nonresidential Buildings [Member]	Dec. 31, 2013 Lessors of Nonresidential Buildings [Member]	Mar. 31, 2014 Lessors of Residential Buildings [Member]	Dec. 31, 2013 Lessors of Residential Buildings [Member]	Mar. 31, 2014 Commercial Real Estate - Mortgage [Member] Contract	Mar. 31, 2013 Commercial Real Estate - Mortgage [Member] Contract	Mar. 31, 2014 Consumer Real Estate - Mortgage [Member] Contract	Mar. 31, 2013 Consumer Real Estate - Mortgage [Member] Contract	Mar. 31, 2014 Construction and Land Development [Member] Contract	Mar. 31, 2013 Construction and Land Development [Member] Contract	Mar. 31, 2014 Commercial and Industrial [Member] Contract	Mar. 31, 2013 Commercial and Industrial [Member] Contract	Mar. 31, 2014 Consumer and Other [Member] Contract	Mar. 31, 2013 Consumer and Other [Member] Contract
Troubled debt restructuring categorized by loan classification [Abstract]
Number of contracts	6	2					0	0	0	1	0	0	6	0	0	1
Pre Modification Outstanding Recorded Investment	$ 2,584,000	$ 632,000					$ 0	$ 0	$ 0	$ 432,000	$ 0	$ 0	$ 2,584,000	$ 0	$ 0	$ 200,000
Post Modification Outstanding Recorded Investment, net of related allowance	565,000	529,000					0	0	0	359,000	0	0	565,000	0	0	170,000
Troubled debt restructurings performing as of restructure date	15,100,000	19,600,000
Number of contracts of troubled debt restructurings subsequently defaulted										2
Troubled debt restructurings subsequently defaulted										1,000,000.0
Percentage of credit exposure to risk based capital (in hundredths)	25.00%
Loan portfolio credit risk exposure [Abstract]
Financing receivables principal balance			501,891,000		240,296,000
Financing receivables unfunded commitment			53,584,000		27,544,000
Financing receivables exposure			$ 555,475,000	$ 515,240,000	$ 267,840,000	$ 270,773,000