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Note 4 - Revenue Recognition (Tables)

12 Months Ended

Mar. 31, 2022

Notes Tables

Disaggregation of Revenue [Table Text Block]

		Year Ended March 31, 2022
Product Line:		Grid				Wind
Equipment and systems		$	91,704			$	6,169
Services and technology development			7,172				3,390
Total		$	98,876			$	9,559
Region:
Americas		$	73,955			$	145
Asia Pacific			19,397				9,346
EMEA			5,524				68
Total		$	98,876			$	9,559

		Year Ended March 31, 2021
Product Line:		Grid				Wind
Equipment and systems		$	65,930			$	14,362
Services and technology development			4,598				2,235
Total		$	70,528			$	16,597
Region:
Americas		$	54,168			$	87
Asia Pacific			11,326				16,207
EMEA			5,034				303
Total		$	70,528			$	16,597

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

		Unbilled AR				Deferred Program Costs				Contract Liabilities
Beginning balance as of March 31, 2021		$	5,765			$	977			$	21,257
Increases for balances acquired			—				634				10,048
Increases for costs incurred to fulfill performance obligations			—				4,814				—
Increase (decrease) due to customer billings			(16,125	)			—				68,895
Decrease due to cost recognition on completed performance obligations			—				(5,551	)			—
Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations			16,852				—				(70,141	)
Other changes and FX impact			—				(16	)			(25	)
Ending balance as of March 31, 2022		$	6,492			$	858			$	30,034

		Unbilled AR				Deferred Program Costs				Contract Liabilities
Beginning balance as of March 31, 2020		$	5,711			$	1,631			$	26,142
Increases for balances acquired			101				—				2,700
Increases for costs incurred to fulfill performance obligations			—				7,674				—
Increase (decrease) due to customer billings			(8,687	)			—				52,988
Decrease due to cost recognition on completed performance obligations			—				(8,346	)			—
Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations			8,640				—				(61,183	)
Other changes and FX impact			—				18				610
Ending balance as of March 31, 2021		$	5,765			$	977			$	21,257

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

			Year Ended
	Reportable		March 31,
	Segment		2022				2021
EPC Services Company	Grid			<10%			13%
Fuji Bridex Pte Ltd	Grid			14%			<10%

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 https://asc.fasb.org/extlink&oid=126920106&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 https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045

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