Consolidated Balance Sheets (November 30, 2012 unaudited) (Parentheticals) (USD $)	Nov. 30, 2012	Feb. 29, 2012
Accounts receivable, allowance for doubtful accounts (in Dollars)	$ 709,548	$ 488,448
Notes receivable, current portion of the valuation allowance (in Dollars)	65,453	0
Inventories, reserve (in Dollars)	253,970	247,199
Notes receivable, valuation allowance (in Dollars)	$ 37,000	$ 74,900
Common stock, par value (in Dollars per share)	$ 0.03	$ 0.03
Common stock, shares authorized (in Shares)	100,000,000	100,000,000
Common stock, shares issued (in Shares)	6,050,279	6,162,389
Common stock, shares outstanding (in Shares)	6,050,279	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 (in Shares)	50,000	50,000
Preferred Stock, shares issued (in Shares)	0	0
Preferred Stock, shares outstanding (in Shares)	0	0
Undesignated Series [Member]
Preferred Stock, par value (in Dollars per share)	$ 0.10	$ 0.10
Preferred Stock, shares authorized (in Shares)	200,000	200,000
Preferred Stock, shares issued (in Shares)	0	0
Preferred Stock, shares outstanding (in Shares)	0	0