Consolidated Statements of Operations - USD ($)	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015
Income Statement [Abstract]
Subscription revenue	$ 12,823,752				$ 11,130,778
Cost of sales of subscription revenue	2,461,571				2,185,440
Gross profit	10,362,181				8,945,338
Operating expenses:
Sales and marketing	2,667,992				2,653,014
Product development	1,005,284				862,754
General and administrative expenses	4,084,711				3,321,076
Total operating expenses	7,757,987				6,836,844
Other income (expenses):
Interest and other income	8,256				7,089
Interest expense	(21,325)				(28,213)
Total other income (expenses)	(13,069)				(21,124)
Income (loss) before income taxes and discontinued operations	2,591,125				2,087,370
Income tax expense	987,000				794,000
Income from continuing operations	1,604,125				1,293,370
Loss from discontinued operations, net of income tax expense (benefit) of $- and $(47,000), respectively					(71,354)
Net income	$ 1,604,125				$ 1,222,016
Per share amounts - basic:
Income from continuing operations	$ 0.14				$ 0.12
Net income	0.14				0.11
Per share amounts - diluted:
Income from continuing operations	0.14				0.11
Net income	$ 0.14				$ 0.10
Weighted average number of common shares outstanding:
Basic	11,283,752				11,190,683
Diluted	11,725,806				11,692,564
Dividends declared per common share	$ 0.17	$ 0.14	$ 0.14	$ 0.14	$ 0.14