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)			0
Stock Compensation	1,139,372		0		1,139,372
Restricted Stock Units (shares)			12,081
Restricted Stock Units	(255,230)		12,081		(267,311)
Stock Issued for SARs, Shares				25,402
Stock Issued for SARs		(599,682)		25,402		(625,084)
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	365,615				365,615
Cash Dividend Paid	(3,589,521)						(3,589,521)
Net Income	14,925,391						14,925,391
Foreign Currency Translation	3,006,686							3,006,686
Interest Rate Swap, Net of $7,301 Income Tax	(13,560)							(13,560)
Balance at May. 31, 2014	$ 391,941,034		$ 25,650,270		$ 23,580,488		$ 350,735,426	$ (8,025,150)
Balance (shares) at May. 31, 2014			25,650,270