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Financial Instruments and Risk Management - Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Risks Inherent in Cash and Cash Equivalents
Cash, interest and non-interest-bearing accounts - unrestricted	$ 43,489	$ 21,819
Money market funds	1,631	2,648
Cash and cash equivalents of continuing operations, ending balance	$ 45,120	$ 24,467
Cash | Minimum
Risks Inherent in Cash and Cash Equivalents
Investment interest rate	0.00%	0.00%
Cash | Maximum
Risks Inherent in Cash and Cash Equivalents
Investment interest rate	0.30%	0.30%
Money Market Funds | Minimum
Risks Inherent in Cash and Cash Equivalents
Investment interest rate	0.01%	0.15%
Money Market Funds | Maximum
Risks Inherent in Cash and Cash Equivalents
Investment interest rate	2.47%	5.39%

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
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