NET INCOME (LOSS) PER SHARE (Computation of Net Income (Loss) Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]
Net income (loss)	$ 1,248	$ (7,893)	$ (3,076)	$ (4,612)
Basic	254,760	247,074	252,724	246,569
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Dilutive shares from stock plans	2,819	0	0	0
Diluted	257,579	247,074	252,724	246,569
Basic and diluted net income (loss) per share	$ 0.00	$ (0.03)	$ (0.01)	$ (0.02)