Condensed consolidated Balance Sheets (Parenthetical) - USD ($)	May 31, 2016	Feb. 29, 2016
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)	25,931,498	25,873,690
Common Stock, Shares, Outstanding	25,931,498	25,873,690