Long-Term Debt (Details Textual) (USD $)				6 Months Ended
	Aug. 31, 2012 Revolving credit facility [Member]	Feb. 29, 2012 Revolving credit facility [Member]	Aug. 31, 2012 Standby letters of credit [Member]	Aug. 31, 2012 Second Amendment [Member] Revolving credit facility [Member]	Aug. 31, 2011 Second Amendment [Member] Revolving credit facility [Member]	Aug. 31, 2012 Second Amendment [Member] Revolving credit facility [Member] Maximum [Member]	Aug. 31, 2012 Second Amendment [Member] Revolving credit facility [Member] Minimum [Member]
Long Term Debt (Textual) [Abstract]
Revolving credit facility, initiation date				Feb. 22, 2012
Revolving credit facility, maximum borrowing capacity				$ 150,000,000
Revolving credit facility, additional borrowing capacity				200,000,000
Revolving credit facility, maturity date				Aug. 18, 2016
Revolving credit facility, interest rate description				London Interbank Offered Rate (“LIBOR”) plus a spread ranging from 1.0% to 2.25%
Revolving credit facility, variable basis spread						2.25%	1.00%
Revolving credit facility, interest rate variable basis spread, option one				1.75%	2.47%
Revolving credit facility, interest rate variable basis spread, option two				1.98%
Revolving credit facility, outstanding borrowings	70,000,000	90,000,000	3,500,000	70,000,000
Revolving credit facility, remaining borrowing capacity			$ 76,500,000
Revolving credit facility, percentage of capital securities of direct Foreign Subsidiary				65.00%