CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract]
Net sales	$ 5,976,875	$ 5,709,840	$ 11,817,716	$ 11,286,963
Cost of goods sold	741,842	774,963	1,489,889	1,530,550
Gross profit	5,235,033	4,934,877	10,327,827	9,756,413
Operating expenses
General and administrative	2,390,610	1,027,835	3,971,373	2,119,681
Research and development	428,763	598,933	908,423	1,161,974
Selling and marketing	4,323,084	3,734,042	8,950,493	7,698,877
Amortization	7,826	215,681	14,474	431,290
Total operating expenses	7,150,283	5,576,491	13,844,763	11,411,822
Operating loss	(1,915,250)	(641,614)	(3,516,936)	(1,655,409)
Other income (expense)
Interest income	5,476	10,931	14,740	23,509
Foreign currency exchange gain (loss)	(1,339)	5,794	(4,034)	(3,877)
Total other income (expense)	4,137	16,725	10,706	19,632
Loss before income taxes	(1,911,113)	(624,889)	(3,506,230)	(1,635,777)
Income tax expense	16,367	14,637	30,542	23,104
Net loss	$ (1,927,480)	$ (639,526)	$ (3,536,772)	$ (1,658,881)
Basic and diluted net loss per common share (in dollars per share)	$ (0.09)	$ (0.03)	$ (0.17)	$ (0.08)
Weighted average common shares outstanding:
Basic and diluted (in shares)	21,076,570	20,763,345	20,921,693	20,753,368