Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $)	May 31, 2014	Feb. 28, 2014
Accounts receivable, allowance for doubtful accounts (in Dollars)	$ 587,056	$ 543,683
Current portion of the valuation allowance (in Dollars)	33,926	33,047
Inventories, reserve (in Dollars)	200,129	204,068
Notes receivable, valuation allowance (in Dollars)	$ 24,200	$ 24,200
Preferred stock ,par value (in Dollars per share)	$ 0.10	$ 0.10
Preferred stock,shares 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,shares authorized	50,000	50,000
Undesignated Series [Member]
Preferred stock,shares authorized	200,000	200,000