Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ (5,039)	$ (3,283)
Other comprehensive income: foreign exchange translation	6	4
Comprehensive loss	(5,033)	(3,279)
Less: comprehensive loss attributable to noncontrolling interest	(6)	(16)
Comprehensive loss attributable to controlling interests	$ (5,027)	$ (3,263)