Condensed Consolidated Statements of Comprehensive Loss (unaudited) (Parenthetical) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Reclassification adjustment from AOCI to earnings, short term investments	$ 100,000	$ 0	$ 1,500,000	$ 0