Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Interest income:
Loans	$ 82,994	$ 88,180	$ 90,595
Mortgage-backed securities	10,060	11,503	3,512
Investment securities and other	2,333	1,684	1,754
Total interest income	95,387	101,367	95,861
Interest expense:
Deposits (note 9)	10,401	14,340	18,032
Borrowed funds (note 10)	7,659	9,913	12,366
Total interest expense	18,060	24,253	30,398
Net interest income	77,327	77,114	65,463
Provision for loan losses (note 5)	7,750	8,000	5,700
Net interest income after provision for loan losses	69,577	69,114	59,763
Other income:
Loan servicing income (loss) (note 6)	427	292	(18)
Fees and service charges	11,431	11,214	10,506
Net gain on sales of loans available for sale (note 14)	3,002	3,657	3,895
Other than temporary impairment losses on investment securities and net loss on sales of securities available for sale (note 3)	(148)		(4)
Income from Bank Owned Life Insurance	1,172	845	835
Net loss from other real estate operations	(623)	(701)	(2)
Other	40	5	377
Total other income	15,301	15,312	15,589
Operating expenses:
Compensation and employee benefits (notes 1 and 12)	28,077	28,148	24,014
Occupancy (note 14)	5,066	5,501	5,991
Equipment	2,436	2,196	2,141
Marketing	1,766	1,745	1,767
Federal deposit insurance	2,553	2,705	3,099
Data processing	3,593	3,426	3,388
Legal	761	1,066	1,464
Check card processing	1,197	1,250	1,079
Accounting and audit	519	624	689
Merger related expenses			1,285
Other operating expense	6,696	6,986	5,627
Total operating expenses	52,664	53,647	50,544
Income before provision for income taxes	32,214	30,779	24,808
Provision for income taxes (note 11)	11,473	10,401	9,155
Net income	20,741	20,378	15,653
Dividends on preferred stock and discount accretion (note 18)			3,170
Net income available to common stockholders	$ 20,741	$ 20,378	$ 12,483
Basic earnings per share	$ 1.14	$ 1.12	$ 0.98
Diluted earnings per share	$ 1.14	$ 1.12	$ 0.98
Average basic shares outstanding (note 1)	18,191	18,142	12,737
Average diluted shares outstanding (note 1)	18,240	18,191	12,784