Fair Value Measurements Fair Value Hierarchy (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2016	Nov. 30, 2015	Feb. 29, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure		$ 5,672		$ 5,672		$ 11,767
Foreign Currency Contracts, Liability, Fair Value Disclosure		489		489		30
Other Investments and Securities, at Cost						6,271
Investments, Fair Value Disclosure		10,417		10,417		10,206
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net		190	$ 166	177	$ 153
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure		5,672		5,672		11,767
Foreign Currency Contracts, Liability, Fair Value Disclosure						0
Foreign Currency Contract, Asset, Fair Value Disclosure		0		0
Other Investments and Securities, at Cost	[1]					0
Investments, Fair Value Disclosure		4,139		4,139		3,935
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure		0		0		0
Foreign Currency Contracts, Liability, Fair Value Disclosure		489		489		30
Other Investments and Securities, at Cost	[1]					0
Investments, Fair Value Disclosure		0		0		0
Construction Loan Payable [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Notional Amount		9,238		9,238
Trading Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure		4,127		4,127		3,917
Trading Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure		4,127		4,127		3,917
Trading Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure		0		0		0
Available-for-sale Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure		12		12		18
Available-for-sale Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure		12		12		18
Available-for-sale Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure		0		0		$ 0
Other Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments and Securities, at Cost		6,278		6,278
Other Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments and Securities, at Cost		0		0
Other Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments and Securities, at Cost		$ 0		$ 0

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