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Note 3 - Revenue Recognition (Tables)

9 Months Ended

Dec. 31, 2022

Notes Tables

Disaggregation of Revenue [Table Text Block]

		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

		Three Months Ended December 31, 2021								Nine Months Ended December 31, 2021
Product Line:		Grid				Wind				Grid				Wind
Equipment and systems		$	23,416			$	1,309			$	67,605			$	4,168
Services and technology development			1,634				440				5,564				2,789
Total		$	25,050			$	1,749			$	73,169			$	6,957
Region:
Americas		$	16,739			$	56			$	57,498			$	134
Asia Pacific			7,064				1,690				10,931				6,781
EMEA			1,247				3				4,740				42
Total		$	25,050			$	1,749			$	73,169			$	6,957

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, 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

		Unbilled Accounts Receivable				Deferred Program Costs				Contract Liabilities
Beginning balance as of March 31, 2021		$	5,765			$	977			$	21,257
Increases for costs incurred to fulfill performance obligations			—				3,140				—
Increase for balance acquired			—				634				10,048
Increase (decrease) due to customer billings			(11,214	)			—				55,354
Decrease due to cost recognition on completed performance obligations			—				(4,128	)			—
Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations			12,186				—				(55,318	)
Other changes and FX impact			—				(8	)			137
Ending balance as of December 31, 2021		$	6,737			$	615			$	31,478

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

			Three Months Ended								Nine Months Ended
	Reportable		December 31,								December 31,
	Segment		2022				2021				2022				2021
Inox Wind Limited	Wind			11	%		<10%				<10%				<10%
Fuji Bridex Pte Ltd	Grid		<10%					20	%			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
-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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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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