CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Revenue:
Product sales	$ 4,354	$ 3,962	$ 13,477	$ 13,756
Other revenues		100		750
Total revenue	4,354	4,062	13,477	14,506
Cost of revenue	(2,225)	(2,204)	(7,100)	(7,361)
Gross profit	2,129	1,858	6,377	7,145
Operating expenses:
Sales and marketing	(918)	(789)	(2,350)	(2,095)
Research and development, net of government grants	(6,931)	(4,453)	(22,122)	(13,573)
General and administrative expense:
Compensation expense in respect of share options and management equity incentives	(566)	(305)	(1,380)	(814)
Other general and administrative expenses	(6,493)	(3,638)	(16,768)	(10,617)
Total general and administrative expense	(7,059)	(3,943)	(18,148)	(11,431)
Total operating expense	(14,908)	(9,185)	(42,620)	(27,099)
Operating loss	(12,779)	(7,327)	(36,243)	(19,954)
Other income (expense):
Interest expense, net	(1,134)	(541)	(2,992)	(1,613)
Change in financial liability for share warrants	3,830	(34,565)	15,857	(33,581)
Other, net	305	130	(987)	(1,490)
Other income (expense), net	3,001	(34,976)	11,878	(36,684)
Loss before income taxes	(9,778)	(42,303)	(24,365)	(56,638)
Net loss	(9,778)	(42,303)	(24,365)	(56,638)
Other comprehensive income (loss):
Change in fair value of effective portion of foreign currency cash flow hedges	(89)	(35)	120	(288)
Foreign currency loss	(1,491)	(1,219)	(297)	(2,711)
Other comprehensive loss, net	(1,580)	(1,254)	(177)	(2,999)
Comprehensive loss	(11,358)	(43,557)	(24,542)	(59,637)
Net loss available to ordinary shareholders - basic and diluted	$ (9,778)	$ (42,303)	$ (24,365)	$ (56,638)
Loss per share - basic and diluted	$ (0.48)	$ (2.80)	$ (1.33)	$ (3.95)
Weighted-average shares outstanding - basic and diluted	20,398,132	15,101,441	18,284,708	14,352,476