Consolidated Balance Sheets (May 31, 2012 unaudited) (Parentheticals) (USD $)	May 31, 2012	Feb. 29, 2012
Accounts receivable, allowance for doubtful accounts (in Dollars)	$ 570,841	$ 488,448
Inventories, reserve (in Dollars)	254,132	249,500
Notes receivable, valuation allowance (in Dollars)	$ 102,453	$ 95,703
Common stock, par value (in Dollars per share)	$ 0.03	$ 0.03
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	6,143,009	6,162,389
Common stock, shares outstanding	6,143,009	6,162,389
Series A Junior Participating Preferred Stock [Member]
Preferred Stock, par value (in Dollars per share)	$ 0.10	$ 0.10
Preferred Stock, shares authorized	50,000	50,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Undesignated Series [Member]
Preferred Stock, par value (in Dollars per share)	$ 0.10	$ 0.10
Preferred Stock, shares authorized	200,000	200,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0