Consolidated Statement of Shareholders' Equity (Unaudited) (USD $)	Total	Stock Appreciation Rights (SARs) [Member]	Common Stock	Common Stock Stock Appreciation Rights (SARs) [Member]	Capital in Excess of Par Value	Capital in Excess of Par Value Stock Appreciation Rights (SARs) [Member]	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at Feb. 28, 2014	$ 375,913,262		$ 25,577,205		$ 21,954,777		$ 339,399,556	$ (11,018,276)
Balance (shares) at Feb. 28, 2014			25,577,205
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Compensation (shares)			16,000
Stock Compensation	2,638,404		16,000		2,622,404
Restricted Stock Units (shares)			14,031
Restricted Stock Units	(278,391)		14,031		(292,422)
Stock Issued for SARs, Shares				25,586
Stock Issued for SARs		(602,649)		25,586		(628,235)
Employee Stock Purchase Plan (shares)			35,582
Employee Stock Purchase Plan	1,048,701		35,582		1,013,119
Federal Income Tax Deducted on Stock Options and SARs	381,322				381,322
Cash Dividend Paid	(7,180,832)						(7,180,832)
Net Income	28,694,101						28,694,101
Foreign Currency Translation	2,379,850							2,379,850
Interest Rate Swap, Net of $14,602 Income Tax	(27,119)							(27,119)
Balance at Aug. 31, 2014	$ 402,966,649		$ 25,668,404		$ 25,050,965		$ 360,912,825	$ (8,665,545)
Balance (shares) at Aug. 31, 2014			25,668,404