Business Segments (Tables)

12 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of Operating Results and Assets of Segments

The operating results for the two business segments are as follows (in thousands):

	Fiscal Years Ended March 31,
	2018		2017		2016
Revenues:
Wind	$	14,294	$	47,269	$	68,883
Grid	34,109		27,926		27,140
Total	$	48,403	$	75,195	$	96,023

	Fiscal Years Ended March 31,
	2018			2017			2016
Operating loss:
Wind	$	(8,904	)	$	(4,174	)	$	(1,256	)
Grid	(18,963		)	(20,476		)	(14,835		)
Unallocated corporate expenses	(4,290		)	(2,892		)	(4,027		)
Total	$	(32,157	)	$	(27,542	)	$	(20,118	)

Total assets for the two business segments as of March 31, 2018 and March 31, 2017 are as follows (in thousands):

	March 31, 2018		March 31, 2017
Wind	$	16,790	$	18,346
Grid	37,012		31,060
Corporate assets	34,373		50,838
Total	$	88,175	$	100,244

Geographic Information about Revenue, Based on Shipments to Customers by Region

Geographic information about revenue, based on shipments to customers by region, is as follows (in thousands):

	Fiscal years ended March 31,
	2018		2017		2016
India	$	12,932	$	44,243	$	59,640
U.S.	17,315		16,224		14,565
China	679		2,004		8,455
Asia Pacific	3,754		2,106		5,364
Africa	118		1,548		2,697
Australia	3,072		4,053		2,410
Europe	5,405		3,624		1,775
Canada	1,120		1,393		1,117
Middle East	4,008		—		—
Total	$	48,403	$	75,195	$	96,023

Geographic Information about Property, Plant and Equipment Associated with Particular Regions

Geographic information about property, plant and equipment associated with particular regions is as follows (in thousands):

	March 31,
	2018		2017
North America	$	11,933	$	42,699
Europe	478		602
Asia Pacific	102		137
Total	$	12,513	$	43,438