Consolidated Statements of Operations - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue:
Subscription revenue	$ 11,429,089		$ 11,369,420		$ 23,008,451	$ 22,797,399
Other revenue	280,131		245,250		826,723	1,641,023
Total revenue	11,709,220		11,614,670		23,835,174	24,438,422
Cost of sales	3,216,079		2,494,753		6,582,430	4,956,324
Gross profit	8,493,141		9,119,917		17,252,744	19,482,098
Operating expenses:
Sales and marketing	3,105,068		3,024,664		6,433,116	5,692,656
Product development	1,105,627		1,015,370		2,272,298	2,020,654
General and administrative expenses	3,712,557		3,536,741		7,833,041	7,621,452
Total operating expenses	7,923,252		7,576,775		16,538,455	15,334,762
Other income (expenses):
Interest and other income	1,126		5,910		1,702	14,166
Interest expense	(32,372)		(28,216)		(64,606)	(49,541)
Total other income (expenses)	(31,246)		(22,306)		(62,904)	(35,375)
Income before income taxes	538,643		1,520,836		651,385	4,111,961
Income tax expense (benefit)	141,000		580,000		(281,000)	1,567,000
Net income	$ 397,643		$ 940,836		$ 932,385	$ 2,544,961
Net income per common share:
Basic	$ 0.03		$ 0.08		$ 0.08	$ 0.23
Diluted	$ 0.03		$ 0.08		$ 0.08	$ 0.22
Weighted average number of common shares outstanding:
Basic	11,514,123		11,321,711		11,480,900	11,302,731
Diluted	11,777,017		11,780,871		11,762,805	11,762,210
Dividends declared per common share	$ 0.17	$ 0.17	$ 0.17	$ 0.17	$ 0.34	$ 0.34