Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $)	Aug. 31, 2013	Feb. 28, 2013
Accounts receivable, allowance for doubtful accounts (in Dollars)	$ 615,242	$ 507,806
Current portion of the valuation allowance (in Dollars)	10,382	10,382
Inventories, reserve (in Dollars)	204,563	253,148
Notes receivable, valuation allowance (in Dollars)	$ 59,900	$ 37,400
Preferred stock, par value (in Dollars per share)	$ 0.10	$ 0.10
Preferred stock, shares authorized (in Shares)	250,000	250,000
Preferred stock, shares issued (in Shares)	0	0
Preferred stock, shares outstanding (in Shares)	0	0
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)	6,115,860	6,068,470
Common stock, shares outstanding (in Shares)	6,115,860	6,068,470
Undesignated Series [Member]
Preferred stock, shares authorized (in Shares)	200,000	200,000
Series A Junior Participating Preferred Stock [Member]
Preferred stock, shares authorized (in Shares)	50,000	50,000