GOODWILL AND OTHER INTANGIBLE ASSETS (Schedule of Other Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended
	May. 31, 2015	Feb. 28, 2015
Other intangible assets:
Gross Carrying Amount	$ 41,342	$ 40,377
Accumulated Amortization	19,425	17,781
Net	$ 21,917	22,596
Supply contract [Member]
Other intangible assets:
Amortization period	5 years
Gross Carrying Amount	$ 2,220	2,220
Accumulated Amortization	1,355	1,247
Net	865	973
Developed/core technology [Member]
Other intangible assets:
Gross Carrying Amount	17,081	16,151
Accumulated Amortization	7,684	7,126
Net	$ 9,397	9,025
Developed/core technology [Member] | Minimum [Member]
Other intangible assets:
Amortization period	2 years
Developed/core technology [Member] | Maximum [Member]
Other intangible assets:
Amortization period	7 years
Tradename [Member]
Other intangible assets:
Amortization period	7 years
Gross Carrying Amount	$ 2,130	2,130
Accumulated Amortization	1,293	1,217
Net	837	913
Customer lists [Member]
Other intangible assets:
Gross Carrying Amount	19,438	19,438
Accumulated Amortization	8,835	7,949
Net	$ 10,603	11,489
Customer lists [Member] | Minimum [Member]
Other intangible assets:
Amortization period	5 years
Customer lists [Member] | Maximum [Member]
Other intangible assets:
Amortization period	7 years
Covenants not to compete [Member]
Other intangible assets:
Amortization period	5 years
Gross Carrying Amount	$ 262	262
Accumulated Amortization	196	187
Net	$ 66	75
Patents [Member]
Other intangible assets:
Amortization period	5 years
Gross Carrying Amount	$ 211	176
Accumulated Amortization	62	55
Net	$ 149	$ 121