INCOME TAXES (Reconciliation of Income Tax Benefit (Provision)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2019
Income Tax Disclosure [Abstract]
Income tax benefit (provision) at U.S. statutory federal rate	$ 4,325	$ 6,420	$ (5,638)
State income tax benefit (provision), net of federal income tax effect	602	117	(1,412)
Foreign taxes benefit (provision)	900	(50)	(31)
U.S. taxes on foreign income	(306)	(571)
Valuation allowance reductions (increases)	(5,825)	(27,726)	5,915
Research and other tax credits	1,322	2,594	1,658
Tax benefits on vested and exercised equity awards	(851)	(606)	758
Non-deductible expenses	(655)	(697)	(229)
Other, net	(73)	65	(409)
Income tax benefit (provision)	$ (561)	$ (20,454)	$ 612