Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (3,487)	$ (7,465)	$ (6,770)	$ (12,617)
Other comprehensive income (loss): foreign exchange translation	12	(12)	16	(15)
Comprehensive loss	(3,475)	(7,477)	(6,754)	(12,632)
Less: comprehensive loss attributable to noncontrolling interest	(8)	(11)	(24)	(17)
Comprehensive loss attributable to controlling interests	$ (3,467)	$ (7,466)	$ (6,730)	$ (12,615)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References

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Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests.

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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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