Fair Value of Financial Instruments (Schedule of Fair Value Measurements, Nonrecurring) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA servicing assets	$ 3,075	$ 2,904	$ 2,340	$ 1,911	$ 1,630	$ 1,102
Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	8,356		19,876
Other real estate owned	3,323		3,642
SBA servicing assets	3,075		2,340
Quoted Prices in Active Markets for Identical Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA servicing assets	0		0
Quoted Prices in Active Markets for Identical Assets [Member] | Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0		0
Other real estate owned	0		0
SBA servicing assets	0		0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA servicing assets	0		0
Fair Value, Inputs, Level 2 [Member] | Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0		0
Other real estate owned	0		0
SBA servicing assets	0		0
Significant Unobservable Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA servicing assets	3,075		2,340
Significant Unobservable Inputs [Member] | Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	8,356		19,876
Other real estate owned	3,323		3,642
SBA servicing assets	$ 3,075		$ 2,340