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
Interest and fees on loans	$ 63,479	$ 56,239	$ 54,816
Interest on investment securities
Securities of U.S. Government agencies	3,478	3,234	3,304
Obligations of state and political subdivisions	1,299	1,146	1,103
Corporate debt securities and other	636	593	506
Interest on Federal funds sold and short-term investments	222	145	5
Total interest income	69,114	61,357	59,734
Interest expense
Interest on interest bearing transaction accounts	151	110	115
Interest on savings accounts	98	104	94
Interest on money market accounts	1,286	2,467	3,235
Interest on CDARS time accounts	237	842	721
Interest on other time accounts	1,314	1,495	1,541
Interest on borrowed funds	2,209	1,430	1,461
Total interest expense	5,295	6,448	7,167
Net interest income	63,819	54,909	52,567
Provision for loan losses	7,050	5,350	5,510
Net interest income after provision for loan losses	56,769	49,559	47,057
Non-interest income
Service charges on deposit accounts	1,836	1,797	1,782
Wealth Management and Trust Services	1,834	1,521	1,383
Other income	2,599	2,203	2,017
Total non-interest income	6,269	5,521	5,182
Non-interest expense
Salaries and related benefits	20,211	18,240	17,001
Occupancy and equipment	4,002	3,576	3,516
Depreciation and amortization	1,293	1,344	1,370
FDIC insurance	1,000	1,506	1,800
Data processing	2,690	1,916	1,650
Professional services	2,499	1,917	1,727
Other expense	6,588	4,858	4,632
Total non-interest expense	38,283	33,357	31,696
Income before provision for income taxes	24,755	21,723	20,543
Provision for income taxes	9,191	8,171	7,778
Net income	15,564	13,552	12,765
Preferred stock dividends and accretion	0	0	(1,299)
Net income available to common stockholders	$ 15,564	$ 13,552	$ 11,466
Net income per common share:
Basic (in dollars per share)	$ 2.94	$ 2.59	$ 2.21
Diluted (in dollars per share)	$ 2.89	$ 2.55	$ 2.19
Weighted average shares used to compute net income per common share:
Basic (in shares)	5,302	5,238	5,182
Diluted (in shares)	5,384	5,314	5,242
Dividends declared per common share (in dollars per share)	$ 0.65	$ 0.61	$ 0.57