Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Nov. 30, 2011	Feb. 28, 2011
Condensed Consolidated Balance Sheets [Abstract]
Accounts Receivable, Allowance for Doubtful Accounts	$ 850,000	$ 720,000
Common Stock, Par Value	$ 1	$ 1
Common Stock, Shares Authorized	50,000,000	50,000,000
Common Stock, Shares Issued	12,609,160	12,609,160
Common Stock Held In Treasury, Shares	26,545	109,804