Consolidated Statements of Operations (USD $)	12 Months Ended
	Feb. 29, 2012	Feb. 28, 2011
Income Statement [Abstract]
Net Sales	$ 12,052,893	$ 9,914,312
Cost of goods sold	5,886,667	5,142,229
Gross Profit	6,166,226	4,772,083
Operating Expenses
Research and product development	1,128,729	823,089
Marketing and selling	2,398,367	2,180,268
General and administrative	1,249,209	1,166,690
Real estate operations expense	128,582
Total Operating Expenses	4,904,887	4,170,047
Operating Income	1,261,339	602,036
Interest Expense	(118,115)	(7,921)
Interest Income	6,049	1,870
Other income (expense)	(7,499)	12,460
Income Before Income Taxes	1,141,774	608,445
Income Tax Expense (Benefit)	(290,519)	14,500
Net Income	$ 1,432,293	$ 593,945
Basic Earnings Per Share	$ 0.10	$ 0.04
Diluted Earnings Per Share	$ 0.09	$ 0.04
Weighted Average Shares - Basic	14,442,908	14,439,166
Weighted Average Shares - Diluted	15,407,144	15,028,047