Supplementary Financial Information (Details 4) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Denominator:
Weighted average common shares used in basic per share computation	32,585	32,629	32,621	32,575
Dilutive warrants (in shares)		2		2
Weighted average common shares used in diluted per share computation	32,585	32,864	32,621	32,790
Stock options
Denominator:
Dilutive (in shares)		134		129
Restricted Stock Units (RSUs)
Denominator:
Dilutive (in shares)		99		84