Consolidated Statements of Operations and Comprehensive Income - USD ($)	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
Income Statement [Abstract]
Net Sales	$ 11,833,730	$ 10,849,475
Cost of Goods Sold	6,195,953	5,634,365
Gross Profit	5,637,777	5,215,110
Operating Expenses
Research and product development	1,268,010	1,015,614
Marketing and selling	2,371,064	2,153,407
General and administrative	1,099,783	1,033,373
Real estate operations expense	158,629	162,522
Total Operating Expenses	4,897,486	4,364,916
Operating Income	740,291	850,194
Other Income (Expense):
Interest Expense	(58,447)	(64,527)
Interest Income	54,757	32,641
Other Income	5,851	7,249
Income Before Income Taxes	742,452	825,557
Income Tax Expense (Benefit)	194,723	219,424
Net Income	547,729	$ 606,133
Other Comprehensive Loss
Net unrealized loss on marketable securities	(70,140)
Comprehensive Income	$ 477,589	$ 606,133
Basic Earnings Per Share	$ 0.04	$ 0.04
Diluted Earnings Per Share	$ 0.04	$ 0.04
Weighted Average Shares - Basic	14,943,018	14,737,204
Weighted Average Shares - Diluted	15,029,601	14,846,808