STATEMENTS OF INCOME (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
STATEMENTS OF INCOME [Abstract]
Operating revenues	$ 10,154,200	$ 9,343,011
Operating expenses:
Data and product costs	3,310,779	2,429,745
Selling, general and administrative expenses	5,468,802	5,102,805
Depreciation and amortization	162,482	133,564
Total operating expenses	8,942,063	7,666,114
Income from operations	1,212,137	1,676,897
Other income, net	98,592	23,443
Income before income taxes	1,310,729	1,700,340
Provision for income taxes	(402,140)	(687,030)
Net income	$ 908,589	$ 1,013,310
Net income per share:
Basic (in dollars per share)	$ 0.11	$ 0.13
Diluted (in dollars per share)	$ 0.11	$ 0.12