CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS [Abstract]
Net revenue	$ 5,313,914	$ 3,835,006	$ 10,938,105	$ 7,816,651
Cost of revenue	2,707,966	2,426,118	5,241,688	5,126,976
Gross profit	2,605,948	1,408,888	5,696,417	2,689,675
Operating expenses:
Selling and marketing	1,321,760	1,495,321	2,763,995	2,949,128
General and administrative	2,109,268	1,863,380	4,244,433	4,216,488
Research and development	447,686	699,791	744,886	1,269,746
Total operating expenses	3,878,714	4,058,492	7,753,314	8,435,362
Operating loss	(1,272,766)	(2,649,604)	(2,056,897)	(5,745,687)
Other income (expense):
Interest expense	(20,756)	(22,882)	(40,186)	(46,059)
Interest income	2	8	45	21
Other	(3,634)	(57,183)	(24,420)	(62,525)
Net loss	(1,297,154)	(2,729,661)	(2,121,458)	(5,854,250)
Unrealized loss on foreign currency translation	(2)	(1,794)	(1,855)	(2,306)
Comprehensive loss	$ (1,297,156)	$ (2,731,455)	$ (2,123,313)	$ (5,856,556)
Net loss per share - basic and diluted (in dollars per share)	$ (0.04)	$ (0.11)	$ (0.06)	$ (0.25)
Weighted-average shares - basic and diluted (shares)	32,798,010	23,873,270	32,797,819	23,873,270