INCOME TAXES (Reconciliation of Income Tax Benefit (Provision)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2017
Income Tax Disclosure [Abstract]
Income tax benefit (provision) at U.S. statutory federal rate	$ (5,010)	$ (9,400)	$ 2,864
State income tax provision, net of federal income tax effect	(1,300)	(574)	182
Foreign taxes	(31)	2,923	68
Impact of tax reform		(8,955)
Valuation allowance reductions (increases)	5,915	3,046	(1,391)
Research and development tax credits	1,658	1,034	806
Tax benefits on vested and exercised equity awards	758	937
Other, net	(660)	308	(966)
Income tax benefit (provision)	$ 1,330	$ (10,681)	$ 1,563