Statements of Operations (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2011	Oct. 31, 2010
Income Statement [Abstract]
Net Sales	$ 299,096	$ 282,999	$ 608,996	$ 564,157
Cost of Sales	91,736	81,506	177,763	165,764
Gross Profit	207,360	201,493	431,233	398,393
Operating Expenses
Marketing	39,797	34,581	78,778	74,951
General and administrative	108,481	86,525	227,036	209,379
Research and development	27,404	23,371	50,241	48,613
Total Operating Expenses	175,682	144,477	356,055	332,943
Income from Operations	31,678	57,016	75,178	65,450
Other Income
Interest income	233	327	481	665
Other income	480	480	960	960
Total Other Income	713	807	1,441	1,625
Net income before income taxes	32,391	57,823	76,619	67,075
Provision for income taxes	(12,148)	(16,780)	(25,284)	(19,465)
Net Income	$ 20,243	$ 41,043	$ 51,335	$ 47,610
Weighted-Average common stock outstanding-basic and diluted	14,935,511	14,935,511	14,935,511	14,935,511