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Note 2 - Revenue Recognition (Tables)

9 Months Ended

Dec. 31, 2023

Notes Tables

Disaggregation of Revenue [Table Text Block]

		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

		Three Months Ended December 31, 2022								Nine Months Ended December 31, 2022
Product Line:		Grid				Wind				Grid				Wind
Equipment and systems		$	19,475			$	2,842			$	61,680			$	6,144
Services and technology development			1,334				230				4,657				1,760
Total		$	20,809			$	3,072			$	66,337			$	7,904
Region:
Americas		$	17,010			$	19			$	51,934			$	19
Asia Pacific			1,760				3,053				10,615				7,815
EMEA			2,039				—				3,788				70
Total		$	20,809			$	3,072			$	66,337			$	7,904

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, 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

		Unbilled Accounts Receivable				Deferred Program Costs				Contract Liabilities
Beginning balance as of March 31, 2022		$	6,492			$	858			$	30,034
Increases for costs incurred to fulfill performance obligations			—				909				—
Increase (decrease) due to customer billings			(11,723	)			—				48,013
Decrease due to cost recognition on completed performance obligations			—				(791	)			—
Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations			9,544				—				(36,452	)
Other changes and FX impact			—				(15	)			(180	)
Ending balance as of December 31, 2022		$	4,313			$	961			$	41,415

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

			Three Months Ended								Nine Months Ended
	Reportable		December 31,								December 31,
	Segment		2023				2022				2023				2022
Inox Wind Limited	Wind			11	%			11	%			12	%		<10%
Fuji Bridex Pte Ltd	Grid		<10%				<10%				<10%					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
-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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