Condensed consolidated Balance Sheets (Parenthetical) - USD ($)	May. 31, 2015	Feb. 28, 2015
Statement of Financial Position [Abstract]
Accounts Receivable, Allowance for Doubtful Accounts	$ 1,568,317	$ 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)	25,770,861	25,732,331