Income Taxes - Deferred Taxes (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Research tax credits	$ 163	$ 0
Other	300	0
Depreciation	(255)	0
Swiss net operating loss	6,019	0
Share-based compensation	1,382	0
Subtotal	7,609	0
Valuation allowance	(7,401)	0
Total deferred tax assets	$ 208	$ 0