CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Interest income
Loans, including fees	$ 83,040,000	$ 78,222,000	$ 74,627,000
Interest on investment securities:
Taxable interest	15,999,000	13,378,000	9,682,000
Tax-exempt interest	4,758,000	2,815,000	2,672,000
Federal funds sold / securities purchased under agreements to resell	425,000	7,000
Interest bearing deposits	2,328,000	2,433,000	1,461,000
Total interest income	106,550,000	96,855,000	88,442,000
Interest expense
Deposits	10,166,000	10,447,000	10,939,000
Securities sold under agreements to repurchase	54,000	95,000	231,000
Short-term borrowings			3,000
Subordinated debenture	548,000	869,000	863,000
Total interest expense	10,768,000	11,411,000	12,036,000
Net interest income	95,782,000	85,444,000	76,406,000
Provision for loan and lease losses	29,500,000	22,438,000	21,498,000
Net interest income after provision for loan and lease losses	66,282,000	63,006,000	54,908,000
Non-interest income
Service fees on deposit accounts	4,977,000	3,548,000	2,552,000
Card payment and ACH processing fees	4,046,000	2,977,000	2,399,000
Prepaid card fees	45,339,000	33,311,000	18,665,000
Gain on sale of loans	17,225,000	1,885,000	4,000
Gain on sales of investment securities	1,889,000	661,000	759,000
Other than temporary impairment on securities held-to-maturity	(20,000)	(202,000)	(75,000)
Leasing income	2,560,000	2,954,000	2,517,000
Debit card income	892,000	482,000	625,000
Affinity fees	2,986,000	2,794,000	1,606,000
Other	3,536,000	1,188,000	1,473,000
Total non-interest income	83,430,000	49,598,000	30,525,000
Non-interest expense
Salaries and employee benefits	53,086,000	40,057,000	31,108,000
Depreciation and amortization	3,694,000	2,762,000	2,443,000
Rent and related occupancy cost	4,073,000	3,352,000	2,959,000
Data processing expense	11,193,000	10,231,000	8,961,000
Printing and supplies	1,660,000	1,721,000	1,529,000
Professional fees	1,441,000	1,145,000	1,081,000
Legal expense	5,717,000	3,888,000	2,801,000
Amortization of intangible assets	1,142,000	1,001,000	1,001,000
Losses on sale and write downs on other real estate owned	1,461,000	2,508,000	555,000
FDIC insurance	3,682,000	3,172,000	3,335,000
Software	3,621,000	2,351,000	2,049,000
Other real estate owned expense	840,000	560,000	1,159,000
Other	19,167,000	15,438,000	13,223,000
Total non-interest expense	110,777,000	88,186,000	72,204,000
Income before income tax	38,935,000	24,418,000	13,229,000
Income tax provision	13,825,000	7,794,000	4,311,000
Net income	$ 25,110,000	$ 16,624,000	$ 8,918,000
Net income per share - basic (in dollars per share)	$ 0.67	$ 0.50	$ 0.28
Net income per share - diluted (in dollars per share)	$ 0.66	$ 0.50	$ 0.28