Business Segments (Tables)

6 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Schedule of Operating Results and Assets of Segments

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

	Three months ended September 30,				Six months ended September 30,
	2015		2014		2015		2014
Revenues:
Wind	$	13,583	$	7,462	$	31,747	$	15,113
Grid		5,421		4,993		10,980		9,038
Total	$	19,004	$	12,455	$	42,727	$	24,151

	Three months ended September 30,						Six months ended September 30,
	2015			2014			2015			2014
Operating loss:
Wind	$	(1,991	)	$	(14,611	)	$	(1,864	)	$	(18,091	)
Grid		(4,113	)		(6,559	)		(10,621	)		(12,966	)
Unallocated corporate expenses		(737	)		(5,230	)		(2,613	)		(8,010	)
Total	$	(6,841	)	$	(26,400	)	$	(15,098	)	$	(39,067	)

Total assets for the two business segments as of September 30, 2015 and March 31, 2015 are as follows (in thousands):

	September 30,		March 31,
	2015		2015
Wind	$	34,391	$	41,947
Grid		38,821		42,482
Corporate assets		61,048		49,396
Total	$	134,260	$	133,825

Schedule of Revenues by Major Customers

The following table sets forth customers who represented 10% or more of the Company’s total revenues for the three and six months ended September 30, 2015 and 2014:

	Three months ended September 30,						Six months ended September 30,
	2015			2014			2015			2014
INOX Wind Limited		66	%		48	%		55	%		48	%
RES American Construction, Inc.	—		%		16	%	—		%	<10		%
Beijing JINGCHENG New Energy Co., Ltd	<10		%	—		%		15	%	<10		%