Condensed Consolidated Statements of Comprehensive Loss (unaudited) (Parenthetical) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Reclassification adjustment from AOCI to earnings, short term investments	$ 0	$ 100,000	$ 1,500,000	$ 100,000