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Note 2 - Revenue Recognition (Tables)

3 Months Ended

Jun. 30, 2020

Notes Tables

Disaggregation of Revenue [Table Text Block]

		Three Months Ended June 30, 2020
Product Line:		Grid				Wind
Equipment and systems		$	16,537			$	2,618
Services and technology development			1,178				880
Total		$	17,715			$	3,498
Region:
Americas		$	10,554			$	12
Asia Pacific			6,015				3,269
EMEA			1,146				217
Total		$	17,715			$	3,498

		Three Months Ended June 30, 2019
Product Line:		Grid				Wind
Equipment and systems		$	8,354			$	3,505
Services and technology development			1,501				410
Total		$	9,855			$	3,915
Region:
Americas		$	7,801			$	46
Asia Pacific			1,827				3,856
EMEA			227				13
Total		$	9,855			$	3,915

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

		Unbilled Accounts Receivable				Deferred Program Costs				Contract Liabilities
Beginning balance as of March 31, 2020		$	5,711			$	1,631			$	26,142
Increases for costs incurred to fulfill performance obligations			—				1,978				—
Increase (decrease) due to customer billings			(3,620	)			—				12,276
Decrease due to cost recognition on completed performance obligations			—				(2,815	)			—
Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations			2,033				—				(16,227	)
Other changes and FX impact			1				7				194
Ending balance as of June 30, 2020		$	4,125			$	801			$	22,385

		Unbilled Accounts Receivable				Deferred Program Costs				Contract Liabilities
Beginning balance as of March 31, 2019		$	2,213			$	318			$	15,521
Increases for costs incurred to fulfill performance obligations			—				771				—
Increase (decrease) due to customer billings			(1,584	)			—				10,857
Decrease due to cost recognition on completed performance obligations			—				(4	)			—
Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations			1,467				—				(7,761	)
Other changes and FX impact			(3	)			3				73
Ending balance as of June 30, 2019		$	2,093			$	1,088			$	18,690

Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]

			Three Months Ended
	Reportable		June 30,
	Segment		2020			2019
Inox Wind Limited	Wind		<10%			27%
Micron Technology	Grid		0%			25%
Siemens Gamesa Renewable Energy	Grid		25%			0%
EPC Services Company	Grid		24%			0%

X

- Definition

Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045

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+ References

No definition available.

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