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Note 3 - Revenue Recognition (Tables)

9 Months Ended

Dec. 31, 2024

Notes Tables

Disaggregation of Revenue [Table Text Block]

		Three Months Ended December 31, 2024								Nine Months Ended December 31, 2024
Product Line:		Grid				Wind				Grid				Wind
Equipment and systems		$	48,979			$	8,768			$	123,431			$	23,357
Services and technology development			3,327				329				8,147				1,228
Total		$	52,306			$	9,097			$	131,578			$	24,585
Region:
Americas		$	47,737			$	—			$	121,696			$	1
Asia Pacific			2,293				9,080				4,280				24,562
EMEA			2,276				17				5,602				22
Total		$	52,306			$	9,097			$	131,578			$	24,585

		Three Months Ended December 31, 2023								Nine Months Ended December 31, 2023
Product Line:		Grid				Wind				Grid				Wind
Equipment and systems		$	31,210			$	4,983			$	81,181			$	13,844
Services and technology development			2,393				767				6,673				1,913
Total		$	33,603			$	5,750			$	87,854			$	15,757
Region:
Americas		$	26,782			$	45			$	74,640			$	102
Asia Pacific			3,704				5,660				8,832				15,587
EMEA			3,117				45				4,382				68
Total		$	33,603			$	5,750			$	87,854			$	15,757

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, 2024		$	6,150			$	2,523			$	57,829
Increase for balance acquired			—				—				5,049
Increases for costs incurred to fulfill performance obligations			—				10,876				—
Increase (decrease) due to customer billings			(7,139	)			—				96,400
Decrease due to cost recognition on completed performance obligations			—				(6,133	)			—
Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations			6,120				—				(75,410	)
Other changes and FX impact			(18	)			(11	)			(540	)
Ending balance as of December 31, 2024		$	5,113			$	7,255			$	83,328

		Unbilled Accounts Receivable				Deferred Program Costs				Contract Liabilities
Beginning balance as of March 31, 2023		$	9,958			$	2,136			$	50,760
Increases for costs incurred to fulfill performance obligations			—				2,714				—
Increase (decrease) due to customer billings			(18,354	)			—				55,018
Decrease due to cost recognition on completed performance obligations			—				(3,518	)			—
Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations			12,969				—				(46,190	)
Other changes and FX impact			15				5				155
Ending balance as of December 31, 2023		$	4,588			$	1,337			$	59,743

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

			Three Months Ended								Nine Months Ended
	Reportable		December 31,								December 31,
	Segment		2024				2023				2024				2023
Inox Wind Limited	Wind			10	%			11	%			13	%			12	%
Innomotics LLC	Grid			14	%			<10%				<10%				<10%

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- 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
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-10

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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