SEGMENT AND GEOGRAPHIC DATA (Summary of Revenues by Geographic Area) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 28, 2019	Nov. 30, 2018	Aug. 31, 2018	May 31, 2018	Feb. 28, 2018	Nov. 30, 2017	Aug. 31, 2017	May 31, 2017	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2017
Segment Reporting Information [Line Items]
Revenues	$ 84,380	$ 88,495	$ 96,037	$ 94,888	$ 94,395	$ 93,669	$ 89,767	$ 88,081	$ 363,800	$ 365,912	$ 351,102
United States [Member]
Segment Reporting Information [Line Items]
Revenues									268,453	265,613	259,974
Europe, Middle East and Africa [Member]
Segment Reporting Information [Line Items]
Revenues									49,496	45,830	49,918
South America [Member]
Segment Reporting Information [Line Items]
Revenues									15,134	20,699	17,738
Canada [Member]
Segment Reporting Information [Line Items]
Revenues									9,815	14,958	8,412
Asia and Pacific Rim [Member]
Segment Reporting Information [Line Items]
Revenues									13,958	12,873	8,967
All other [Member]
Segment Reporting Information [Line Items]
Revenues									$ 6,944	$ 5,939	$ 6,093