Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Interest income
Loans	$ 14,494	$ 12,030	$ 39,114	$ 36,147
Securities held-to-maturity	1,744	1,304	5,131	4,595
Securities available-for-sale	5,671	6,042	17,054	17,104
Federal funds sold and interest-bearing deposits in other banks	170	262	457	967
Total interest income	22,079	19,638	61,756	58,813
Interest expense
Savings and NOW deposits	562	583	1,649	2,023
Money market accounts	603	636	1,833	2,109
Time deposits	1,493	2,512	4,774	7,285
Securities sold under agreements to repurchase	94	82	274	290
Other borrowed funds and subordinated debentures	2,107	1,987	6,215	5,826
Total interest expense	4,859	5,800	14,745	17,533
Net interest income	17,220	13,838	47,011	41,280
Provision for loan losses	1,250	1,200	3,250	3,600
Net interest income after provision for loan losses	15,970	12,638	43,761	37,680
Other operating income
Service charges on deposit accounts	1,977	2,031	5,887	5,854
Lockbox fees	745	658	2,225	2,129
Net gain on sales of investments	529	883	1,119	1,245
Other income	854	931	2,481	2,651
Total other operating income	4,105	4,503	11,712	11,879
Operating expenses
Salaries and employee benefits	8,400	7,357	24,732	21,948
Occupancy	1,161	1,059	3,459	3,285
Equipment	627	608	1,754	1,700
FDIC assessments	450	413	1,302	1,612
Other	3,070	2,618	8,712	7,495
Total operating expenses	13,708	12,055	39,959	36,040
Income before income taxes	6,367	5,086	15,514	13,519
Provision for income taxes	685	504	1,253	1,015
Net income	$ 5,682	$ 4,582	$ 14,261	$ 12,504
Class A Common Stock
Share data:
Weighted average number of shares outstanding, basic	3,561,625	3,544,967	3,556,369	3,542,170
Weighted average number of shares outstanding, diluted	5,549,810	5,541,646	5,548,133	5,541,711
Earnings per share, basic	$ 1.25	$ 1.01	$ 3.13	$ 2.75
Earnings per share, diluted	$ 1.02	$ 0.83	$ 2.57	$ 2.26
Class B Common Stock
Share data:
Weighted average number of shares outstanding, basic	1,986,880	1,995,630	1,990,838	1,998,422
Weighted average number of shares outstanding, diluted	1,986,880	1,995,630	1,990,838	1,998,422
Earnings per share, basic	$ 0.62	$ 0.50	$ 1.57	$ 1.38
Earnings per share, diluted	$ 0.62	$ 0.50	$ 1.57	$ 1.38