STATEMENTS OF INCOME - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
STATEMENTS OF INCOME [Abstract]
Operating revenues	$ 12,814,390	$ 12,486,316
Operating expenses:
Data and product costs	4,944,053	4,665,360
Selling, general and administrative expenses	7,495,742	6,685,528
Depreciation and amortization	200,136	218,621
Total operating expenses	12,639,931	11,569,509
Income from operations	174,459	916,807
Other income, net	27,183	2,344
Income before income taxes	201,642	919,151
Provision for income taxes	(149,199)	(405,965)
Net income	$ 52,443	$ 513,186
Net income per share:
Basic (in dollars per share)	$ 0	$ 0.05
Diluted (in dollars per share)	$ 0	$ 0.05