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Revenue Recognition (Tables)

9 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Cumulative effect of ASU 2014-09

The cumulative effect to the Company’s consolidated April 1, 2018 balance sheet from the adoption of the new revenue standard and the sale of nonfinancial assets was as follows (in thousands):

	March 31, 2018				Opening Adjustment				April 1, 2018
Assets:
Accounts Receivable	$	7,365			$	(678	)		$	6,687
Inventory	19,780				(1,599		)		18,181
Prepaid expenses and other current assets	2,947				2,277				5,224
Notes receivable, long term portion	2,559				105				2,664
Liabilities and Stockholders' Equity:
Accounts payable and accrued expenses	$	(12,625	)		$	(2,729	)		$	(15,354	)
Deferred revenue	(13,483		)		2,657				(10,826		)
Accumulated deficit	$	(988,333	)		$	(33	)		$	(988,366	)

Disaggregation of Revenue

The following tables disaggregate the Company’s revenue by product line and by shipment destination:

	Three Months Ended December 31, 2018								Nine Months Ended December 31, 2018
Product Line:	Grid				Wind				Grid				Wind
Equipment and systems	$	4,614			$	7,215			$	17,571			$	17,925
Services and technology development	2,212				93				5,754				368
Total	$	6,826			$	7,308			$	23,325			$	18,293
Region:
Americas	$	3,771			$	36			$	16,319			$	82
Asia Pacific	2,815				7,263				5,930				18,136
EMEA	240				9				1,076				75
Total	$	6,826			$	7,308			$	23,325			$	18,293

Contract with Customer

Changes in the Company’s contract assets, which are included in “Unbilled AR” and “Deferred program costs” (see Note 7, “Accounts Receivable” and Note 8, “Inventory” for a reconciliation to the condensed consolidated balance sheet) and contract liabilities, which are included in the current portion and long term portion of “deferred revenue” in the Company’s condensed consolidated balance sheets, are as follows:

	Unbilled AR				Deferred Program Costs				Contract Liabilities
Beginning balance as of March 31, 2018	$	3,016			$	2,567			$	21,937
Impact of adoption of ASC 606	—				(1,599		)		(2,657		)
Increases for costs incurred to fulfill performance obligations	—				1,461				—
Increase (decrease) due to customer billings	(11,063		)		—				11,167
Decrease due to cost recognition on completed performance obligations	—				(1,132		)		—
Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations	9,722				(9		)		(11,345		)
Other changes and FX impact	(53		)		8				(1,040		)
Ending balance as of December 31, 2018	$	1,622			$	1,296			$	18,062

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 nine months ended December 31, 2018 and 2017:

	Reportable		Three Months Ended December 31,						Nine Months Ended December 31,
	Segment		2018			2017			2018			2017
Inox Wind Limited	Wind		47	%		15	%		40	%		27	%
Vestas	Grid		<10 %			27	%		15	%		11	%
SSE Generation Ltd.	Grid		<10 %			17	%		<10 %			<10 %
Fuji Bridex Pte Ltd	Grid		17	%		—	%		<10 %			—	%

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