Fair Value Measurements - Schedule Of Estimated Fair Values (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Duration of purchased receivables	1 year
Other assets (interest rate contracts and MSR)	$ 1,185	$ 186
Purchased receivables, net	17,380	16,025
Other liabilities (interest rate contracts)	16	186
Commitments to extend credit	2,200	1,879
Standby letters of credit	62	65
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commitments to extend credit	219,979	187,931	[1]
Standby letters of credit	6,232	6,463	[1]
Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash, due from banks and deposits in other banks	97,883	99,091
Investment securities	27,078	20,487
Other assets (interest rate contracts and MSR)	0	0
Other liabilities (interest rate contracts)
Quoted Prices In Active Markets for Identical Assets (Level 1) | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash, due from banks and deposits in other banks	97,883	99,091
Investment securities	27,078	20,487
Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	186,645	232,458
Accrued interest receivable	3,136	2,729
Other assets (interest rate contracts and MSR)	16	186
Deposits	1,130,106	1,003,816
Securities sold under repurchase agreements	19,776	21,143
Borrowings	2,275	6,448
Accrued interest payable	118	52
Other liabilities (interest rate contracts)	16	186
Significant Other Observable Inputs (Level 2) | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	186,500	232,305
Accrued interest receivable	3,136	2,729
Other assets (interest rate contracts and MSR)	16	186
Deposits	1,130,266	1,003,723
Securities sold under repurchase agreements	19,776	21,143
Borrowings	2,186	6,527
Accrued interest payable	118	52
Other liabilities (interest rate contracts)	16	186
Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets (interest rate contracts and MSR)	1,169	0
Loans and loans held for sale, net	930,807	769,570
Purchased receivables, net	17,380	16,025
Mortgage servicing rights	1,169	0
Other liabilities (interest rate contracts)
Junior subordinated debentures	16,420	15,456
Significant Unobservable Inputs (Level 3) | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans and loans held for sale, net	924,966	765,035
Purchased receivables, net	17,380	16,025
Mortgage servicing rights	1,169	0
Junior subordinated debentures	$ 18,558	$ 18,558

[1] Carrying amounts reflect the notional amount of credit exposure under these financial instruments.