Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $)	May 31, 2013	Feb. 28, 2013
Accounts receivable, allowance for doubtful accounts (in Dollars)	$ 634,146	$ 507,806
Current portion of the valuation allowance (in Dollars)	10,382	10,382
Inventories, reserve (in Dollars)	255,527	253,148
Notes receivable, valuation allowance (in Dollars)	$ 37,400	$ 37,400
Preferred stock, par value (in Dollars per share)	$ 0.10	$ 0.10
Preferred Stock, Authorized	250,000	250,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
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	6,080,290	6,068,470
Common stock, shares outstanding	6,080,290	6,068,470
Series A Preferred Stock [Member]
Preferred Stock, Authorized	50,000	50,000
Undesignated Series [Member]
Undesignated series, authorized shares	200,000	200,000