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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)	Nov. 30, 2019	Feb. 28, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 46,000	$ 46,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	25,000,000	25,000,000
Common stock, issued shares	15,323,831	15,197,563
Common stock, outstanding shares	15,323,831	15,197,563

X

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Amount of allowance for credit loss on accounts receivable, classified as current.

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Face amount or stated value per share of common stock.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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