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Condensed consolidated Balance Sheets (Parenthetical) - USD ($)
Nov. 30, 2015
Feb. 28, 2015
Statement of Financial Position [Abstract]    
Accounts Receivable, Allowance for Doubtful Accounts $ 316,099 $ 1,471,986
Common Stock, Par Value (usd per share) $ 1 $ 1
Common Stock, Shares Authorized (shares) 100,000,000 100,000,000
Common Stock, Shares Issued (shares) 25,837,006 25,732,331