CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $)	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract]
Net sales	$ 5,577,123	$ 4,653,123
Cost of goods sold	755,587	709,566
Gross profit	4,821,536	3,943,557
Operating expenses
General and administrative	1,091,846	1,021,858
Research and development	563,041	455,760
Selling and marketing	3,964,835	3,594,142
Amortization	215,609	212,315
Total operating expenses	5,835,331	5,284,075
Operating loss	(1,013,795)	(1,340,518)
Other income (expense)
Interest income	12,578	17,834
Foreign currency exchange (loss) gain	(9,671)	5,308
Total other income (expense)	2,907	23,142
Loss before income taxes	(1,010,888)	(1,317,376)
Income tax expense	8,467	13,931
Net loss	$ (1,019,355)	$ (1,331,307)
Basic and diluted loss per common share (in dollars per share)	$ (0.05)	$ (0.06)
Weighted average common shares outstanding:
Basic and diluted (in shares)	20,743,282	20,628,788