Consolidated Statements of Operations (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Subscription revenue	$ 10,468,941		$ 8,780,212	$ 30,609,361	$ 25,512,849
Cost of sales of subscription revenue	2,072,977		1,755,020	5,963,564	5,111,217
Gross profit	8,395,964		7,025,192	24,645,797	20,401,632
Operating expenses:
Sales and marketing	2,573,236		2,096,965	7,666,463	6,097,549
Product development	945,444		835,811	2,522,572	2,349,576
General and administrative expenses	2,981,806		2,893,109	9,221,399	9,167,171
Total operating expenses	6,500,486		5,825,885	19,410,434	17,614,296
Other income (expenses):
Interest and other income	6,262		2,943	15,391	7,472
Interest expense	(28,352)		(28,352)	(84,848)	(84,848)
Total other income (expenses)	(22,090)		(25,409)	(69,457)	(77,376)
Income before income taxes and discontinued operations	1,873,388		1,173,898	5,165,906	2,709,960
Income tax expense	743,000		469,000	2,074,000	1,081,000
Income from continuing operations	1,130,388		704,898	3,091,906	1,628,960
(Loss) from discontinued operations, net of income tax (benefit) of $(34,000), $(36,000), $(351,000) and $(159,000), respectively	(50,287)		(55,947)	(520,904)	(245,869)
Net income	$ 1,080,101		$ 648,951	$ 2,571,002	$ 1,383,091
Per share amounts - basic:
Income from continuing operations	$ 0.10		$ 0.06	$ 0.28	$ 0.15
Net income	$ 0.10		$ 0.06	$ 0.23	$ 0.13
Per share amounts - diluted:
Income from continuing operations	$ 0.10		$ 0.05	$ 0.27	$ 0.14
Net income	$ 0.09		$ 0.05	$ 0.22	$ 0.12
Weighted average number of common shares outstanding:
Basic	11,119,165		10,907,579	11,067,030	10,876,279
Diluted	11,653,268		11,445,326	11,556,333	11,382,774
Dividends declared per common share	$ 0.11	$ 0.11		$ 0.22