Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Interest income:
Interest and fees on loans	$ 20,379	$ 19,536
Interest and dividends on investment securities	4,369	3,914
Total interest income	24,748	23,450
Interest expense:
Deposits	1,671	2,398
Short-term borrowings	190	111
Total interest expense	1,861	2,509
Net interest income	22,887	20,941
Provision for loan losses	2,709	1,385
Net interest income after provision for loan losses	20,178	19,556
Noninterest income:
Service charges on deposits	2,141	1,835
ATM and debit card	1,249	1,077
Broker-dealer fees and commissions	699	587
Company owned life insurance	415	426
Net gain on sale of loans held for sale	200	333
Net gain on disposal of investment securities	892	331
Loan servicing	73	94
Impairment charges on investment securities		(91)
Net gain on disposal of other assets	1	6
Other	883	853
Total noninterest income	6,553	5,451
Noninterest expense:
Salaries and employee benefits	9,709	9,056
Occupancy and equipment	3,169	2,770
Professional services	937	711
Computer and data processing	704	600
Supplies and postage	680	458
FDIC assessments	361	297
Advertising and promotions	214	101
Other	1,810	1,664
Total noninterest expense	17,584	15,657
Income before income taxes	9,147	9,350
Income tax expense	2,998	3,154
Net income	6,149	6,196
Preferred stock dividends	368	369
Net income available to common shareholders	$ 5,781	$ 5,827
Earnings per common share (Note 3):
Basic	$ 0.42	$ 0.43
Diluted	$ 0.42	$ 0.42
Cash dividends declared per common share	$ 0.18	$ 0.13
Weighted average common shares outstanding:
Basic	13,717	13,675
Diluted	13,767	13,733