CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract]
Net sales	$ 6,454,630	$ 5,976,875	$ 12,839,259	$ 11,817,716
Cost of goods sold	753,225	741,842	1,544,536	1,489,889
Gross profit	5,701,405	5,235,033	11,294,723	10,327,827
Operating expenses
General and administrative	1,288,297	2,390,610	2,865,665	3,971,373
Research and development	651,035	428,763	1,560,479	908,423
Selling and marketing	4,818,704	4,323,084	10,091,325	8,950,493
Amortization	8,226	7,826	16,552	14,474
Total operating expenses	6,766,262	7,150,283	14,534,021	13,844,763
Operating loss	(1,064,857)	(1,915,250)	(3,239,298)	(3,516,936)
Other income (expense)
Interest income	1,833	5,476	4,845	14,740
Foreign currency exchange gain (loss)	(2,190)	(1,339)	(1,279)	(4,034)
Total other income (expense)	(357)	4,137	3,566	10,706
Loss before income taxes	(1,065,214)	(1,911,113)	(3,235,732)	(3,506,230)
Income tax expense	15,032	16,367	34,847	30,542
Net loss	$ (1,080,246)	$ (1,927,480)	$ (3,270,579)	$ (3,536,772)
Basic and diluted net loss per common share (in dollars per share)	$ (0.05)	$ (0.09)	$ (0.15)	$ (0.17)
Weighted average common shares outstanding:
Basic and diluted (in shares)	21,617,675	21,076,570	21,693,989	20,921,693