American Superconductor (AMSC) 10-Q 24 Jan 24 2023 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Dec. 31, 2023	Jan. 19, 2024
Document Information [Line Items]
Entity Central Index Key	0000880807
Entity Registrant Name	AMERICAN SUPERCONDUCTOR CORP /DE/
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2023
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Dec. 31, 2023
Document Transition Report	false
Entity File Number	0-19672
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	04-2959321
Entity Address, Address Line One	114 East Main St
Entity Address, City or Town	Ayer
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01432
City Area Code	978
Local Phone Number	842-3000
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	AMSC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		30,736,347

Unaudited Condensed Consolidate

Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Current assets:
Cash and cash equivalents	$ 23,979	$ 23,360
Accounts receivable, net	24,721	30,665
Inventory, net	44,197	36,986
Prepaid expenses and other current assets	6,635	13,429
Restricted cash	667	1,733
Total current assets	100,199	106,173
Property, plant and equipment, net	11,205	12,309
Intangibles, net	6,907	8,527
Right-of-use assets	2,401	2,857
Goodwill	43,471	43,471
Restricted cash	379	582
Deferred tax assets	1,141	1,114
Other assets	640	528
Total assets	166,343	175,561
Current liabilities:
Accounts payable and accrued expenses	23,002	38,383
Lease liability, current portion	680	808
Debt, current portion	41	75
Contingent consideration	1,230	1,270
Deferred revenue, current portion	52,598	43,572
Total current liabilities	77,551	84,108
Deferred revenue, long-term portion	7,145	7,188
Lease liability, long-term portion	1,861	2,184
Deferred tax liabilities	235	243
Debt, long-term portion	0	15
Other liabilities	26	26
Total liabilities	86,818	93,764
Commitments and Contingencies (Note 16)
Stockholders' equity:
Common stock	311	299
Additional paid-in capital	1,146,405	1,139,113
Treasury stock	(3,639)	(3,639)
Accumulated other comprehensive income	1,527	1,571
Accumulated deficit	(1,065,079)	(1,055,547)
Total stockholders' equity	79,525	81,797
Total liabilities and stockholders' equity	$ 166,343	$ 175,561

Unaudited Condensed Consolida_2

Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Revenues	$ 39,353	$ 23,881	$ 103,611	$ 74,241
Cost of revenues	29,369	23,364	78,759	69,533
Gross margin	9,984	517	24,852	4,708
Operating expenses:
Research and development	2,199	2,083	5,693	7,076
Selling, general and administrative	7,833	7,173	23,648	22,084
Amortization of acquisition-related intangibles	538	690	1,614	2,058
Change in fair value of contingent consideration	852	(220)	3,052	(340)
Restructuring	0	0	(14)	0
Total operating expenses	11,422	9,726	33,993	30,878
Operating loss	(1,438)	(9,209)	(9,141)	(26,170)
Interest income, net	150	42	518	112
China dissolution	0	0	0	(1,921)
Other expense, net	(298)	(287)	(618)	(48)
Loss before income tax expense	(1,586)	(9,454)	(9,241)	(28,027)
Income tax expense	63	127	291	144
Net loss	$ (1,649)	$ (9,581)	$ (9,532)	$ (28,171)
Net loss per common share
Basic (in dollars per share)	$ (0.06)	$ (0.34)	$ (0.33)	$ (1.01)
Diluted (in dollars per share)	$ (0.06)	$ (0.34)	$ (0.33)	$ (1.01)
Weighted average number of common shares outstanding
Basic (in shares)	29,092	27,954	28,728	27,794
Diluted (in shares)	29,092	27,954	28,728	27,794

Unaudited Condensed Consolida_3

Unaudited Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Net loss	$ (1,649)	$ (9,581)	$ (9,532)	$ (28,171)
Other comprehensive (loss) gain, net of tax:
China dissolution	0	0	0	1,921
Foreign currency translation loss	(106)	(195)	(44)	(27)
Total other comprehensive (loss) gain, net of tax	(106)	(195)	(44)	1,894
Comprehensive loss	$ (1,755)	$ (9,776)	$ (9,576)	$ (26,277)

Unaudited Consolidated Statemen

Unaudited Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock, Common [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares)	28,920
Balance	$ 289	$ 1,133,536	$ (3,639)	$ (291)	$ (1,020,506)	$ 109,389
Balance (in shares) at Mar. 31, 2022	28,920
Balance at Mar. 31, 2022	$ 289	1,133,536	(3,639)	(291)	(1,020,506)	109,389
Issuance of common stock – restricted shares (in shares)	9
Issuance of common stock – restricted shares	$ 0	0	0	0	0	0
Stock-based compensation expense		1,033				1,033
Issuance of common stock for 401(k) match (in shares)	28
Issuance of common stock for 401(k) match	$ 0	138	0	0	0	138
Cumulative translation adjustment				63		63
Net loss					(8,710)	(8,710)
Cumulative translation adjustment				63		63
Net loss					(8,710)	(8,710)
Issuance of common stock – restricted shares, net of forfeited shares (in shares)	(9)
Balance (in shares) at Jun. 30, 2022	28,939
Balance at Jun. 30, 2022	$ 289	1,134,707	(3,639)	(228)	(1,029,216)	101,913
Balance (in shares) at Mar. 31, 2022	28,920
Balance at Mar. 31, 2022	$ 289	1,133,536	(3,639)	(291)	(1,020,506)	109,389
Net loss						(28,171)
Net loss						(28,171)
Balance (in shares) at Dec. 31, 2022	29,928,000
Balance at Dec. 31, 2022	$ 299	1,137,622	(3,639)	1,603	(1,048,678)	87,207
Balance (in shares)	28,939
Balance	$ 289	1,134,707	(3,639)	(228)	(1,029,216)	101,913
Balance (in shares) at Jun. 30, 2022	28,939
Balance at Jun. 30, 2022	$ 289	1,134,707	(3,639)	(228)	(1,029,216)	101,913
Issuance of common stock – restricted shares (in shares)	331
Issuance of common stock – restricted shares	$ 3	(3)	0	0	0	0
Stock-based compensation expense	$ 0	1,019	0	0	0	1,019
Issuance of common stock for 401(k) match (in shares)	33
Issuance of common stock for 401(k) match	$ 1	178	0	0	0	179
Cumulative translation adjustment	0	0	0	2,026	0	2,026
Net loss	$ 0	0	0	0	(9,881)	(9,881)
Issuance of common stock – ESPP (in shares)	34
Issuance of common stock – ESPP	$ 0	127	0	0	0	127
Cumulative translation adjustment	0	0	0	2,026	0	2,026
Net loss	$ 0	0	0	0	(9,881)	(9,881)
Issuance of common stock – restricted shares, net of forfeited shares (in shares)	(331)
Balance (in shares) at Sep. 30, 2022	29,337
Balance at Sep. 30, 2022	$ 293	1,136,028	(3,639)	1,798	(1,039,097)	95,383
Balance (in shares)	29,337
Balance	$ 293	1,136,028	(3,639)	1,798	(1,039,097)	95,383
Issuance of common stock – restricted shares (in shares)	550
Issuance of common stock – restricted shares	$ 6	(6)	0	0	0	0
Stock-based compensation expense	$ 0	1,440	0	0	0	1,440
Issuance of common stock for 401(k) match (in shares)	41
Issuance of common stock for 401(k) match	$ 0	160	0	0	0	160
Cumulative translation adjustment	0	0	0	(195)	0	(195)
Net loss	0	0	0	0	(9,581)	(9,581)
Cumulative translation adjustment	0	0	0	(195)	0	(195)
Net loss	$ 0	0	0	0	(9,581)	(9,581)
Issuance of common stock – restricted shares, net of forfeited shares (in shares)	(550)
Balance (in shares) at Dec. 31, 2022	29,928,000
Balance at Dec. 31, 2022	$ 299	1,137,622	(3,639)	1,603	(1,048,678)	87,207
Balance (in shares)	29,928,000
Balance	$ 299	1,137,622	(3,639)	1,603	(1,048,678)	87,207
Balance (in shares)	29,937
Balance	$ 299	1,139,113	(3,639)	1,571	(1,055,547)	81,797
Balance (in shares) at Mar. 31, 2023	29,937
Balance at Mar. 31, 2023	$ 299	1,139,113	(3,639)	1,571	(1,055,547)	81,797
Issuance of common stock – restricted shares (in shares)	699
Issuance of common stock – restricted shares	$ 7	(7)	0	0	0	0
Stock-based compensation expense		1,357				1,357
Issuance of common stock for 401(k) match (in shares)	33
Issuance of common stock for 401(k) match	$ 1	163	0	0	0	164
Cumulative translation adjustment				(2)		(2)
Net loss					(5,398)	(5,398)
Cumulative translation adjustment				(2)		(2)
Net loss					(5,398)	(5,398)
Issuance of common stock – restricted shares, net of forfeited shares (in shares)	(699)
Balance (in shares) at Jun. 30, 2023	30,669
Balance at Jun. 30, 2023	$ 307	1,140,626	(3,639)	1,569	(1,060,945)	77,918
Balance (in shares) at Mar. 31, 2023	29,937
Balance at Mar. 31, 2023	$ 299	1,139,113	(3,639)	1,571	(1,055,547)	81,797
Net loss						(9,532)
Net loss						(9,532)
Balance (in shares) at Dec. 31, 2023	31,134
Balance at Dec. 31, 2023	$ 311	1,146,405	(3,639)	1,527	(1,065,079)	79,525
Balance (in shares)	30,669
Balance	$ 307	1,140,626	(3,639)	1,569	(1,060,945)	77,918
Balance (in shares) at Jun. 30, 2023	30,669
Balance at Jun. 30, 2023	$ 307	1,140,626	(3,639)	1,569	(1,060,945)	77,918
Issuance of common stock – restricted shares (in shares)	9
Issuance of common stock – restricted shares	$ 0	0	0	0	0	0
Stock-based compensation expense	$ 0	1,111	0	0	0	1,111
Issuance of common stock for 401(k) match (in shares)	17
Issuance of common stock for 401(k) match	$ 0	150	0	0	0	150
Cumulative translation adjustment	0	0	0	64	0	64
Net loss	$ 0	0	0	0	(2,485)	(2,485)
Issuance of common stock – ESPP (in shares)	21
Issuance of common stock – ESPP	$ 0	136	0	0	0	136
Cumulative translation adjustment	0	0	0	64	0	64
Net loss	$ 0	0	0	0	(2,485)	(2,485)
Issuance of common stock – restricted shares, net of forfeited shares (in shares)	(9)
Balance (in shares) at Sep. 30, 2023	30,716
Balance at Sep. 30, 2023	$ 307	1,142,023	(3,639)	1,633	(1,063,430)	76,894
Balance (in shares)	30,716
Balance	$ 307	1,142,023	(3,639)	1,633	(1,063,430)	76,894
Stock-based compensation expense	$ 0	1,140	0	0	0	1,140
Issuance of common stock for 401(k) match (in shares)	18
Issuance of common stock for 401(k) match	$ 0	154	0	0	0	154
Cumulative translation adjustment	0	0	0	(106)	0	(106)
Net loss	$ 0	0	0	0	(1,649)	(1,649)
Issuance of common stock for contingent consideration (in shares)	400
Issuance of common stock for contingent consideration	$ 4	3,088	0	0	0	3,092
Cumulative translation adjustment	0	0	0	(106)	0	(106)
Net loss	$ 0	0	0	0	(1,649)	(1,649)
Balance (in shares) at Dec. 31, 2023	31,134
Balance at Dec. 31, 2023	$ 311	1,146,405	(3,639)	1,527	(1,065,079)	79,525
Balance (in shares)	31,134
Balance	$ 311	$ 1,146,405	$ (3,639)	$ 1,527	$ (1,065,079)	$ 79,525

Unaudited Condensed Consolida_4

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net loss	$ (9,532)	$ (28,171)
Adjustments to reconcile net loss to net cash used in operations:
Depreciation and amortization	3,360	4,104
Stock-based compensation expense	3,608	3,492
Provision for excess and obsolete inventory	1,536	1,247
Deferred income taxes	3	65
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	3,052	(340)
China dissolution	0	1,921
Other non-cash items	495	185
Unrealized foreign exchange loss on cash and cash equivalents	(1)	(3)
Changes in operating asset and liability accounts:
Accounts receivable	5,945	2,738
Inventory	(8,737)	(16,324)
Prepaid expenses and other assets	7,139	(165)
Accounts payable and accrued expenses	(15,859)	2,565
Deferred revenue	8,894	11,619
Net cash used in operating activities	(97)	(17,067)
Cash flows from investing activities:
Purchase of property, plant and equipment	(635)	(970)
Change in other assets	(8)	(194)
Net cash used in investing activities	(643)	(1,164)
Cash flows from financing activities:
Repayment of debt	(49)	(56)
Proceeds from exercise of employee stock options and ESPP	136	127
Net cash provided by financing activities	87	71
Effect of exchange rate changes on cash	3	25
Net decrease in cash, cash equivalents and restricted cash	(650)	(18,135)
Cash, cash equivalents and restricted cash at beginning of period	25,675	49,486
Cash, cash equivalents and restricted cash at end of period	25,025	31,351
Supplemental schedule of cash flow information:
Cash paid for income taxes, net of refunds	263	280
Non-cash investing and financing activities
Issuance of common stock to settle contingent consideration	3,092	0
Issuance of common stock to settle liabilities	$ 467	$ 476

Note 1 - Nature of the Business

Note 1 - Nature of the Business and Operations and Liquidity	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	AMERICAN SUPERCONDUCTOR CORPORATION NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS 1. Nature of the Business and Operations American Superconductor Corporation (together with its subsidiaries, “AMSC®” or the “Company”) was founded on April 9, 1987. These unaudited condensed consolidated financial statements of the Company have been prepared on a going concern basis in accordance with United States generally accepted accounting principles (“GAAP”) and the Securities and Exchange Commission’s (“SEC”) instructions to Form 10 not December 31, 2023 2022 December 31, 2023 not may March 31, 2023, 10 March 31, 2023 May 31, 2023. Liquidity The Company has historically experienced recurring operating losses and as of December 31, 2023 December 31, 2023 nine December 31, 2023 In February 2021, 3 February 2024 ( 3” 3 $250 3 3 In recent periods, the Company has experienced inflationary pressure in its supply chain and some delays in sourcing materials needed for its products resulting in some production disruption, both of which have increased the Company’s cost of revenues and decreased gross margin. While the impact of inflation has been challenging, the Company has taken actions to limit this pressure, including adjusting the pricing of its products and services. Changes in macroeconomic conditions arising from various reasons, such as the ongoing wars between Russia and Ukraine and Israel and Hamas, inflation, COVID- 19, From time-to-time the Company may January 2023, December 31, 2023 March 31, 2024, 2023. The Company believes that based on the information presented above and its quarterly management assessment, it has sufficient liquidity to fund its operations and capital expenditures for the next twelve nine December 31, 2023 19 may no

Note 2 - Revenue Recognition

Note 2 - Revenue Recognition	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	2. The Company’s revenues in its Grid business segment are derived primarily through enabling the transmission and distribution of power, providing planning services that allow it to identify power grid needs and risks, and developing ship protection systems for the U.S. Navy. The Company’s revenues in its Wind business segment are derived primarily through supplying advanced power electronics and control systems, licensing its highly engineered wind turbine designs, and providing extensive customer support services to wind turbine manufacturers. The Company records revenue based on a five 606. three nine December 31, 2023 three nine December 31, 2022 In the Company's equipment and system product line, each contract with a customer summarizes each product sold to a customer, which typically represents distinct performance obligations. A contract's transaction price is allocated to each distinct performance obligation using the respective standalone selling price which is determined primarily using the cost-plus expected margin approach and recognized as revenue when, or as, the performance obligation is satisfied. The majority of the Company’s product sales transfer control to the customer in line with the contracted delivery terms and revenue is recorded at the point in time when title and risk transfer to the customer, which is primarily upon delivery, as the Company has determined that this is the point in time that control transfers to the customer. In the Company's service and technology development product line, there are several different types of transactions, and each begins with a contract with a customer that summarizes each product sold to a customer, which typically represents distinct performance obligations. The technology development transactions are primarily for activities that have no not not not 606, no The Company's service contracts can include a purchase order from a customer for specific goods in which each item is a distinct performance obligation satisfied at a point in time at which control of the goods is transferred to the customer. This transfer occurs based on the contracted delivery terms or when the requested service work has been completed. The transaction price for these goods is allocated based on the adjusted market approach considering similar transactions under similar circumstances. Service contracts are also derived from ongoing maintenance contracts and extended service-type warranty contracts. In these transactions, the Company is contracted to provide an ongoing service over a specified period of time. As the customer is consuming the benefits as the service is being provided, the revenue is recognized over time ratably. The Company’s policy is not The Company provides assurance-type warranties on all product sales for a term of typically one three four The Company records revenue net of sales tax, value added tax, excise tax and other taxes collected concurrent with revenue-producing activities. The Company has elected to recognize the cost for freight and shipping when control over the products sold passes to customers and revenue is recognized. The Company has elected to recognize incremental costs of obtaining a contract as expense when incurred except in contracts where the amortization period would exceed twelve not twelve The Company monitors costs to meet its obligations on its customer contracts. When it is evident that there is a loss expected on a contract, a contract loss is accrued in the period. Several long-term contracts that were acquired from Neeltran, Inc. (“Neeltran”) were impacted by higher than planned costs due to required design changes and inflation on material costs, resulting in an increase to the contract loss accrual of $1.6 million and $3.2 million in the three nine December 31, 2022 three nine December 31, 2023 The Company’s contracts with customers do not may 30 60 The following tables disaggregate the Company’s revenue by product line and by shipment destination (in thousands): 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 As of December 31, 2023 2022 7, 8, 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 The Company’s remaining performance obligations represent the unrecognized revenue value of the Company’s contractual commitments. The Company’s performance obligations may December 31, 2023 606 twelve million illion o thirteen sixty The following table sets forth customers who represented 10% three nine December 31, 2023 2022 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 %

Note 3 - Stock-based Compensati

Note 3 - Stock-based Compensation	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Share-Based Payment Arrangement [Text Block]	3. The Company accounts for its stock-based compensation at fair value. The following table summarizes stock-based compensation expense by financial statement line item for the three nine December 31, 2023 2022 Three Months Ended December 31, Nine Months Ended December 31, 2023 2022 2023 2022 Cost of revenues $ 62 $ 89 $ 230 $ 195 Research and development 158 214 469 570 Selling, general and administrative 920 1,137 2,909 2,727 Total $ 1,140 $ 1,440 $ 3,608 $ 3,492 The Company issued no shares and 681,500 shares of restricted stock during the three nine December 31, 2023 three December 31, 2023 nine December 31, 2023 three December 31, 2022 nine December 31, 2022 3 The estimated fair value of the Company’s stock-based awards, less expected annual forfeitures, is amortized over the awards’ service period. The total unrecognized compensation cost for unvested stock options was less than $0.1 illion as of December 31, 2023 llion as of December 31, 2023 The Company granted no stock options during the three nine December 31, 2023 three December 31, 2022 nine December 31, 2022 nine December 31, 2022 nine December 31, 2022 Expected volatility 71.40 % Risk-free interest rate 3.10 % Expected life (years) 6.14 Dividend yield None

Note 4 - Computation of Net Los

Note 4 - Computation of Net Loss Per Common Share	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Earnings Per Share [Text Block]	4. Basic net loss per share (“EPS”) is computed by dividing net loss by the weighted-average number of common shares outstanding for the period. Where applicable, diluted EPS is computed by dividing the net loss by the weighted-average number of common shares and dilutive common equivalent shares outstanding during the period, calculated using the treasury stock method. Common equivalent shares include the effect of restricted stock, exercise of stock options and warrants and contingently issuable shares. Stock options and warrants that are out-of-the-money with exercise prices greater than the average market price of the underlying common shares and shares of performance-based restricted stock where the contingency was not three nine December 31, 2023 not 0.3 million not . three nine December 31, 2022 not 1.0 not . The following table reconciles the numerators and denominators of the earnings per share calculation for the three nine December 31, 2023 2022 Three Months Ended December 31, Nine Months Ended December 31, 2023 2022 2023 2022 Numerator: Net loss $ (1,649 ) $ (9,581 ) $ (9,532 ) $ (28,171 ) Denominator: Weighted-average shares of common stock outstanding 30,547 29,354 30,180 28,884 Weighted-average shares subject to repurchase (1,455 ) (1,400 ) (1,452 ) (1,090 ) Shares used in per-share calculation ― basic 29,092 27,954 28,728 27,794 Shares used in per-share calculation ― diluted 29,092 27,954 28,728 27,794 Net loss per share ― basic $ (0.06 ) $ (0.34 ) $ (0.33 ) $ (1.01 ) Net loss per share ― diluted $ (0.06 ) $ (0.34 ) $ (0.33 ) $ (1.01 )

Note 5 - Goodwill and Other Int

Note 5 - Goodwill and Other Intangibles	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	5. Goodwill Goodwill represents the difference between the purchase price and the fair value of the identifiable tangible and intangible net assets when accounted for using the purchase method of accounting. Goodwill is not February 28th not There were no nine December 31, 2023 March 31, 2023 The Company did not three nine December 31, 2023 Other Intangibles Intangible assets at December 31, 2023 March 31, 2023 December 31, 2023 March 31, 2023 Gross Amount Accumulated Amortization Net Book Value Gross Amount Accumulated Amortization Net Book Value Estimated Useful Life Backlog 681 (681 ) — 681 (675 ) $ 6 2 Trade name and trademarks 1,800 — 1,800 1,800 — 1,800 Indefinite Customer relationships 9,600 (6,232 ) 3,368 9,600 (4,980 ) 4,620 7 Core technology and know-how 5,970 (4,231 ) 1,739 5,970 (3,869 ) 2,101 5-10 Intangible assets $ 18,051 $ (11,144 ) $ 6,907 $ 18,051 $ (9,524 ) $ 8,527 The Company recorded intangible amortization expense related to customer relationship and core technology and know-how of $0.5 million and in the three nine December 31, 2023 three nine December 31, 2022 . Additionally, the Company recorded no three December 31, 2023 the nine December 31, 2023 the three nine ended December 31, 2022 , respectively. Expected future amortization expense related to intangible assets is as follows (in thousands): Years ending March 31, Total 2024 538 2025 1,648 2026 1,221 2027 1,085 2028 543 Thereafter 72 Total $ 5,107 The Company's intangible assets relate entirely to the Grid business segment operations in the United States.

Note 6 - Fair Value Measurement

Note 6 - Fair Value Measurements	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Fair Value Disclosures [Text Block]	6. A valuation hierarchy for disclosure of the inputs to valuation used to measure fair value has been established. This hierarchy prioritizes the inputs into three Level 1 - Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date. Level 2 - Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not Level 3 - Unobservable inputs that reflect the Company’s assumptions that market participants would use in pricing the asset or liability. The Company develops these inputs based on the best information available, including its own data. The Company provides a gross presentation of activity within Level 3 1 2 1 2 3 not 1, 2 3 nine December 31, 2023 A financial asset’s or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. Valuation Techniques Cash Equivalents Cash equivalents consist of highly liquid instruments with maturities of three 1 Contingent Consideration Contingent consideration relates to the earnout payment set forth in the Stock Purchase Agreement governing the acquisition of Northeast Power Systems, Inc ("NEPSI") that provides that the selling stockholders may four See Note 13 The following table provides the assets and liabilities carried at fair value on a recurring basis, measured as of December 31, 2023 March 31, 2023 Total Carrying Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2023: Assets: Cash equivalents $ 9,936 $ 9,936 $ — $ — Derivative liabilities: Contingent consideration $ 1,230 $ — $ — $ 1,230 Total Carrying Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2023: Assets: Cash equivalents $ 7,913 $ 7,913 $ — $ — Derivative liabilities: Contingent consideration $ 1,270 $ — $ — $ 1,270 The table below reflects the activity for the Company’s contingent consideration derivative liability measured at fair value on a recurring basis (in thousands): Acquisition Contingent Consideration Balance at March 31, 2022 $ 1,200 Change in fair value 70 Balance at March 31, 2023 1,270 Settlement of contingent consideration (3,092 ) Change in fair value 3,052 Balance at December 31, 2023 $ 1,230

Note 7 - Accounts Receivable

Note 7 - Accounts Receivable	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Accounts Receivable [Text Block]	7. Accounts receivable at December 31, 2023 March 31, 2023 December 31, 2023 March 31, 2023 Accounts receivable (billed) $ 20,133 $ 20,707 Accounts receivable (unbilled) 4,588 9,958 Accounts receivable, net $ 24,721 $ 30,665

Note 8 - Inventory

Note 8 - Inventory	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Inventory Disclosure [Text Block]	8. Inventory, net of reserves, at December 31, 2023 March 31, 2023 December 31, 2023 March 31, 2023 Raw materials $ 21,197 $ 16,654 Work-in-process 16,571 15,200 Finished goods 5,092 2,996 Deferred program costs 1,337 2,136 Net inventory $ 44,197 $ 36,986 The Company recorded inventory write-downs of $0.5 million a or the three December 31, 2023 and 2022 , respectively. nine December 31, 2023 2022 Deferred program costs as of December 31, 2023 March 31, 2023

Note 9 - Prepaid and Other Curr

Note 9 - Prepaid and Other Current Assets	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Prepaid and Other Current Assets [Text Block]	9. During fiscal 2022, 2020 2021. first second 2021 first 2020. As accounting for payroll tax credits are not 740, Income Taxes 20, Accounting for Government Grants and Disclosure of Government Assistance 20, three March 31, 2021 June 30, 2021 three March 31, 2020. The Company recorded a $3.3 million receivable in Prepaid expenses and other current assets and a benefit of $1.8 million to Cost of revenues, $0.8 million to SG&A and $0.7 million to Research and development in the fiscal year ended March 31, 2023 nine December 31, 2023 2023.

Note 10 - Property, Plant and E

Note 10 - Property, Plant and Equipment	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	10. The cost and accumulated depreciation of property, plant and equipment at December 31, 2023 March 31, 2023 December 31, 2023 March 31, 2023 Land $ 980 $ 980 Construction in progress - equipment 245 748 Buildings 5,416 5,416 Equipment and software 44,203 43,156 Finance lease - right of use asset — 1 Furniture and fixtures 1,537 1,535 Leasehold improvements 6,897 6,815 Property, plant and equipment, gross 59,278 58,651 Less accumulated depreciation (48,073 ) (46,342 ) Property, plant and equipment, net $ 11,205 $ 12,309 Depreciation expense was $0.6 million and $0.6 million for the three December 31, 2023 2022 nine December 31, 2023 2022

Note 11 - Accounts Payable and

Note 11 - Accounts Payable and Accrued Expenses	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	11. Accounts payable and accrued expenses at December 31, 2023 March 31, 2023 December 31, 2023 March 31, 2023 Accounts payable $ 5,867 $ 13,935 Accrued inventories in-transit 928 2,267 Accrued other miscellaneous expenses 4,363 3,870 Accrued contract loss 55 3,464 Advanced deposits 1,948 5,653 Accrued compensation 7,385 5,430 Income taxes payable 322 409 Accrued product warranty 2,031 2,638 Accrued restructuring 103 717 Total $ 23,002 $ 38,383 The Company generally provides a one three Product warranty activity was as follows (in thousands): Three Months Ended December 31, Nine Months Ended December 31, 2023 2022 2023 2022 Balance at beginning of period $ 1,892 $ 2,053 $ 2,638 $ 2,066 Provisions for warranties during the period 360 535 1,212 1,191 Settlements during the period (221 ) (592 ) (1,819 ) (1,261 ) Balance at end of period $ 2,031 $ 1,996 $ 2,031 $ 1,996

Note 12 - Income Taxes

Note 12 - Income Taxes	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Income Tax Disclosure [Text Block]	12. The Company recorded income tax expense of $0.1 million and $0.3 million in the three nine December 31, 2023 three nine December 31, 2022 Accounting for income taxes requires a two first not second 50% not not nine December 31, 2023 not December 31, 2023

Note 13 - Contingent Considerat

Note 13 - Contingent Consideration	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Business Combination, Contingent Consideration [Text Block]	13. On October 1, 2020 ( may four $75.0 three December 31, 2023, The Company evaluated the NEPSI Acquisition earnout payment set forth in the NEPSI Stock Purchase Agreement, which is expected to require settlement in the Company's common stock, and determined the contingent consideration qualified for liability classification and derivative treatment under ASC 815, Derivatives and Hedging Following is a summary of the key assumptions used in a Monte Carlo simulation to calculate the fair value of the contingent consideration related to the NEPSI Acquisition: December 31, September 30, June 30, Fiscal Year 2023 2023 2023 2023 Revenue risk premium 5.70 % 5.30 % 5.20 % Revenue volatility 24.8 % 27.5 % 23 % Stock Price $ 11.14 $ 7.55 $ 6.26 Payment delay (days) 80 80 80 Fair value (millions) $ 1.2 $ 3.5 $ 2.6 March 31, December 31, September 30, June 30, March 31, Fiscal Year 2022 2023 2022 2022 2022 2022 Revenue risk premium 5.30 % 5.30 % 5.20 % 6.60 % 6.50 % Revenue volatility 25 % 25 % 25 % 30 % 33 % Stock Price $ 4.91 $ 3.68 $ 4.38 $ 5.18 $ 7.61 Payment delay (days) 80 80 80 80 80 Fair value (millions) $ 1.3 $ 0.9 $ 1.1 $ 1.4 $ 1.2 During the three nine December 31, 2023 not 300,000 September 30, 2024. three nine December 31, 2023

Note 14 - Debt

Note 14 - Debt	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Debt Disclosure [Text Block]	14. As part of the acquisition of Neeltran, the Company identified four May 6, 2021. e is less than $0.1 million as of December 31, 2023 $0.1 million as of March 31, 2023

Note 15 - Leases

Note 15 - Leases	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Lessee, Operating Leases [Text Block]	15. The Company determines whether a contract is or contains a lease at inception of a contract. The Company defines a lease as a contract, or part of a contract, that conveys the right to control the use of identified property or equipment (an identified asset) for a period of time in exchange for consideration. Control over the use of the identified asset means that the Company has both the right to obtain substantially all of the economic benefits from the use of the asset and the right to direct the use of the asset. The discount rate was calculated using an incremental borrowing rate based on an assessment prepared by the Company through the use of Company credit ratings, consideration of its lease populations potential risk to its total capital structure, and a market rate for a collateralized loan for its risk profile, calculated by a third Operating Leases All significant lease arrangements are recognized at lease commencement. Operating lease right–of-use assets and lease liabilities are recognized at commencement. The operating lease right-of-use asset includes any lease payments related to initial direct cost and prepayments and excludes any lease incentives. Lease expense is recognized on a straight-line basis over the lease term. The Company enters into a variety of operating lease agreements through the normal course of its business, but primarily real estate leases to support its operations. The real estate lease agreements generally provide for fixed minimum rental payments and the payment of real estate taxes and insurance. Many of these real estate leases have one five The Company also enters into leases for vehicles, IT equipment and service agreements, and other leases related to its manufacturing operations that are also included in the right-of-use assets and lease liability accounts if they are for a term of longer than twelve Finance Leases As of December 31, 2023 , the right-of-use asset related to the finance lease, net of accumulated amortization is $0.0 million, and is included in the property and equipment, net on the Company's condensed consolidated balance sheet. Finance lease right-of-use assets and lease liabilities are recognized similar to an operating lease, at the lease commencement date or the date the lessor makes the leased asset available for use. Finance lease right-of-use assets are generally amortized on a straight-line basis over the lease term, and the carrying amount of the finance lease liabilities are ( 1 not 2 Supplemental balance sheet information related to leases at December 31, 2023 March 31, 2023 December 31, 2023 March 31, 2023 Leases: Right-of-use assets - Financing $ - 1 Right-of-use assets - Operating 2,401 2,857 Total right-of-use assets 2,401 2,858 Lease liabilities - ST Financing $ - 1 Lease liabilities - ST Operating 680 807 Lease liabilities - LT Operating 1,861 2,184 Total lease liabilities $ 2,541 2,992 Weighted-average remaining lease term 3.5 years 3.95 years Weighted-average discount rate 8.68 % 6.46 % The costs related to the Company's finance lease are not three nine December 31, 2023 2022 Three Months Ended Nine Months Ended December 31, 2023 December 31, 2023 Operating Leases: Operating lease costs - fixed $ 303 $ 817 Operating lease costs - variable 39 119 Short-term lease costs 37 111 Total lease costs $ 379 $ 1,047 Three Months Ended Nine Months Ended December 31, 2022 December 31, 2022 Operating Leases: Operating lease costs - fixed $ 256 $ 765 Operating lease costs - variable 41 118 Short-term lease costs 30 92 Total lease costs $ 327 $ 975 The Company’s estimated minimum future lease obligations under the Company's leases are as follows (in thousands): Leases Year ending March 31, 2024 $ 234 2025 841 2026 793 2027 646 2028 392 Thereafter 15 Total minimum lease payments 2,921 Less: interest (380 ) Present value of lease liabilities 2,541

Note 16 - Commitments and Conti

Note 16 - Commitments and Contingencies	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	16. Legal Contingencies From time to time, the Company is involved in legal and administrative proceedings and claims of various types. The Company records a liability in its condensed consolidated financial statements for these matters when a loss is known or considered probable and the amount can be reasonably estimated. The Company reviews these estimates each accounting period as additional information is known and adjusts the loss provision when appropriate. If a matter is both probable to result in a liability and the amounts of loss can be reasonably estimated, the Company estimates and discloses the possible loss or range of loss to the extent necessary to make the condensed consolidated financial statements not not not Other The Company enters into long-term construction contracts with customers that require the Company to obtain performance bonds. The Company is required to deposit an amount equivalent to some or all the face amount of the performance bonds into an escrow account until the termination of the bond. When the performance conditions are met, amounts deposited as collateral for the performance bonds are returned to the Company. In addition, the Company has various contractual arrangements in which minimum quantities of goods or services have been committed to be purchased on an annual basis. As of December 31, 2023 March 31, 2023

Note 17 - Restructuring

Note 17 - Restructuring	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Restructuring and Related Activities Disclosure [Text Block]	17 Restructuring The Company accounts for charges resulting from operational restructuring actions in accordance with ASC Topic 420 , Exit or Disposal Cost Obligations 420” 712 , Compensation Nonretirement Postemployment Benefits 712” On January 24, 2023 , 2022 , March 31, 2024. The following table presents restructuring charges and cash payments during the nine December 31, 2023 March 31, 2023 ( Severance pay and benefits Accrued restructuring balance at April 1, 2023 $ 717 Charges to operations (14 ) Cash payments (600 ) Accrued restructuring balance at December 31, 2023 $ 103 Severance pay and benefits Accrued restructuring balance at April 1, 2022 $ — Charges to operations 1,048 Cash payments (331 ) Accrued restructuring balance at March 31, 2023 $ 717  All restructuring charges discussed above are included within restructuring in the Company’s condensed consolidated statements of operations. The Company includes accrued restructuring within accounts payable and accrued expenses in the condensed consolidated balance sheets. The Company's restructuring charges relate primarily to the Grid business segment operations in the United States.

Note 18 - Business Segments

Note 18 - Business Segments	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	18. The Company reports its financial results in two 280, Segment Reporting four one Through the Company’s power grid offerings, the Grid business segment enables electric utilities, industrial facilities, and renewable energy project developers to connect, transmit and distribute smarter, cleaner and better power through its transmission planning services, power electronics, and superconductor-based systems. The sales process is enabled by transmission planning services that allow it to identify power grid congestion, poor power quality and other risks, which helps the Company determine how its solutions can improve network performance. These services often lead to sales of grid interconnection solutions for wind farms and solar power plants, power quality systems, and transmission and distribution cable systems. The Company also sells ship protection products to the U.S. Navy through its Grid business segment. Through the Company’s wind power offerings, the Wind business segment enables manufacturers to field highly competitive wind turbines through its advanced power electronics and control system products, engineered designs, and support services. The Company supplies advanced power electronics and control systems, licenses its highly engineered wind turbine designs, and provides extensive customer support services to wind turbine manufacturers. The Company’s design portfolio includes a broad range of drive trains and power ratings of 2 The operating results for the two Three Months Ended December 31, Nine Months Ended December 31, 2023 2022 2023 2022 Revenues: Grid $ 33,603 $ 20,809 $ 87,854 $ 66,337 Wind 5,750 3,072 15,757 7,904 Total $ 39,353 $ 23,881 $ 103,611 $ 74,241 Three Months Ended December 31, Nine Months Ended December 31, 2023 2022 2023 2022 Operating income (loss): Grid $ 268 $ (7,064 ) $ (2,383 ) $ (20,840 ) Wind 286 (924 ) (112 ) (2,178 ) Unallocated corporate expenses (1,992 ) (1,221 ) (6,646 ) (3,152 ) Total $ (1,438 ) $ (9,209 ) $ (9,141 ) $ (26,170 ) The accounting policies of the business segments are the same as those for the consolidated Company. The Company’s business segments have been determined in accordance with the Company’s internal management structure, which is organized based on operating activities. The Company evaluates performance based upon several factors, of which the primary financial measures are segment revenues and segment operating loss. The disaggregated financial results of the segments reflect allocation of certain functional expense categories consistent with the basis and manner in which Company management internally disaggregates financial information for the purpose of assisting in making internal operating decisions. In addition, certain corporate expenses which the Company does not two Unallocated corporate expenses three nine December 31, 2023 September 30, 2024. three nine December 31, 2022 Additionally, unallocated corporate expenses consisted of stock-based compensation expense of $ million and million in the three months ended December 31, 2023 and 2022 , respectively, nine December 31, 2023 2022 Total assets for the two December 31, 2023 March 31, 2023 December 31, 2023 March 31, 2023 Grid $ 128,395 $ 135,296 Wind 12,933 14,361 Corporate assets 25,015 25,904 Total $ 166,343 $ 175,561

Note 19 - Recent Accounting Pro

Note 19 - Recent Accounting Pronouncements	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Accounting Standards Update and Change in Accounting Principle [Text Block]	19. In June 2016 , 2016 13, Financial Instruments-Credit Losses (Topic 326 2016 13 2019 10 November 2019, December 15, 2022. April 1, 2023, 2016 13 no In October 2021, 2021 08, Business Combinations (Topic 805 2021 08 2021 08 October 2021, December 15, 2022. April 1, 2023, 2021 08 no In November 2023, 2023 07, Segment Reporting (Topic 280 2023 07 2023 07 November 2023, December 15, 2024. December 31, 2023, In December 2023, 2023 09, Income Taxes (Topic 740 2023 09 2023 09 December 2023, December 15, 2024. December 31, 2023,

Note 20 - Subsequent Events

Note 20 - Subsequent Events	9 Months Ended
	Dec. 31, 2023
Notes to Financial Statements
Subsequent Events [Text Block]	20. The Company has performed an evaluation of subsequent events through the time of filing this Quarterly Report on Form 10 no

Insider Trading Arrangements

Insider Trading Arrangements	9 Months Ended
	Dec. 31, 2023 shares
ecd_TradingArrByIndTable
Material Terms of Trading Arrangement [Text Block]	5. OTHER INFORMATION On December 13, 2023, adopted 10b5 1 10b5 1 June 28, 2024, On December 6, 2023, John W. Kosiba 10b5 1 10b5 1 June 28, 2024,
Rule 10b5-1 Arrangement Adopted [Flag]	true
Non-Rule 10b5-1 Arrangement Adopted [Flag]	false
Rule 10b5-1 Arrangement Terminated [Flag]	false
Non-Rule 10b5-1 Arrangement Terminated [Flag]	false
Daniel P. McGahn [Member]
ecd_TradingArrByIndTable
Trading Arrangement Adoption Date	December 13, 2023
Trading Arrangement, Individual Name	Daniel P. McGahn
Trading Arrangement, Individual Title	Chairman, President and Chief Executive Officer
Trading Arrangement, Securities Aggregate Available Amount	57,724
John W. Kosiba, Jr. [Member]
ecd_TradingArrByIndTable
Trading Arrangement Adoption Date	December 6, 2023
Trading Arrangement, Individual Name	John W. Kosiba, Jr.
Trading Arrangement, Individual Title	Senior Vice President, Chief Financial Officer and Treasurer
Trading Arrangement, Securities Aggregate Available Amount	61,000

Note 2 - Revenue Recognition (T

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 %

Note 3 - Stock-based Compensa_2

Note 3 - Stock-based Compensation (Tables)	9 Months Ended
	Dec. 31, 2023
Notes Tables
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]	Three Months Ended December 31, Nine Months Ended December 31, 2023 2022 2023 2022 Cost of revenues $ 62 $ 89 $ 230 $ 195 Research and development 158 214 469 570 Selling, general and administrative 920 1,137 2,909 2,727 Total $ 1,140 $ 1,440 $ 3,608 $ 3,492
Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]	Expected volatility 71.40 % Risk-free interest rate 3.10 % Expected life (years) 6.14 Dividend yield None

Note 4 - Computation of Net L_2

Note 4 - Computation of Net Loss Per Common Share (Tables)	9 Months Ended
	Dec. 31, 2023
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Three Months Ended December 31, Nine Months Ended December 31, 2023 2022 2023 2022 Numerator: Net loss $ (1,649 ) $ (9,581 ) $ (9,532 ) $ (28,171 ) Denominator: Weighted-average shares of common stock outstanding 30,547 29,354 30,180 28,884 Weighted-average shares subject to repurchase (1,455 ) (1,400 ) (1,452 ) (1,090 ) Shares used in per-share calculation ― basic 29,092 27,954 28,728 27,794 Shares used in per-share calculation ― diluted 29,092 27,954 28,728 27,794 Net loss per share ― basic $ (0.06 ) $ (0.34 ) $ (0.33 ) $ (1.01 ) Net loss per share ― diluted $ (0.06 ) $ (0.34 ) $ (0.33 ) $ (1.01 )

Note 5 - Goodwill and Other I_2

Note 5 - Goodwill and Other Intangibles (Tables)	9 Months Ended
	Dec. 31, 2023
Notes Tables
Schedule of Finite-Lived Intangible Assets [Table Text Block]	December 31, 2023 March 31, 2023 Gross Amount Accumulated Amortization Net Book Value Gross Amount Accumulated Amortization Net Book Value Estimated Useful Life Backlog 681 (681 ) — 681 (675 ) $ 6 2 Trade name and trademarks 1,800 — 1,800 1,800 — 1,800 Indefinite Customer relationships 9,600 (6,232 ) 3,368 9,600 (4,980 ) 4,620 7 Core technology and know-how 5,970 (4,231 ) 1,739 5,970 (3,869 ) 2,101 5-10 Intangible assets $ 18,051 $ (11,144 ) $ 6,907 $ 18,051 $ (9,524 ) $ 8,527
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Years ending March 31, Total 2024 538 2025 1,648 2026 1,221 2027 1,085 2028 543 Thereafter 72 Total $ 5,107

Note 6 - Fair Value Measureme_2

Note 6 - Fair Value Measurements (Tables)	9 Months Ended
	Dec. 31, 2023
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Total Carrying Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2023: Assets: Cash equivalents $ 9,936 $ 9,936 $ — $ — Derivative liabilities: Contingent consideration $ 1,230 $ — $ — $ 1,230 Total Carrying Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2023: Assets: Cash equivalents $ 7,913 $ 7,913 $ — $ — Derivative liabilities: Contingent consideration $ 1,270 $ — $ — $ 1,270
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	Acquisition Contingent Consideration Balance at March 31, 2022 $ 1,200 Change in fair value 70 Balance at March 31, 2023 1,270 Settlement of contingent consideration (3,092 ) Change in fair value 3,052 Balance at December 31, 2023 $ 1,230

Note 7 - Accounts Receivable (T

Note 7 - Accounts Receivable (Tables)	9 Months Ended
	Dec. 31, 2023
Notes Tables
Accounts Receivable [Table Text Block]	December 31, 2023 March 31, 2023 Accounts receivable (billed) $ 20,133 $ 20,707 Accounts receivable (unbilled) 4,588 9,958 Accounts receivable, net $ 24,721 $ 30,665

Note 8 - Inventory (Tables)

Note 8 - Inventory (Tables)	9 Months Ended
	Dec. 31, 2023
Notes Tables
Schedule of Inventory, Current [Table Text Block]	December 31, 2023 March 31, 2023 Raw materials $ 21,197 $ 16,654 Work-in-process 16,571 15,200 Finished goods 5,092 2,996 Deferred program costs 1,337 2,136 Net inventory $ 44,197 $ 36,986

Note 10 - Property, Plant and_2

Note 10 - Property, Plant and Equipment (Tables)	9 Months Ended
	Dec. 31, 2023
Notes Tables
Property, Plant and Equipment [Table Text Block]	December 31, 2023 March 31, 2023 Land $ 980 $ 980 Construction in progress - equipment 245 748 Buildings 5,416 5,416 Equipment and software 44,203 43,156 Finance lease - right of use asset — 1 Furniture and fixtures 1,537 1,535 Leasehold improvements 6,897 6,815 Property, plant and equipment, gross 59,278 58,651 Less accumulated depreciation (48,073 ) (46,342 ) Property, plant and equipment, net $ 11,205 $ 12,309

Note 11 - Accounts Payable an_2

Note 11 - Accounts Payable and Accrued Expenses (Tables)	9 Months Ended
	Dec. 31, 2023
Notes Tables
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]	December 31, 2023 March 31, 2023 Accounts payable $ 5,867 $ 13,935 Accrued inventories in-transit 928 2,267 Accrued other miscellaneous expenses 4,363 3,870 Accrued contract loss 55 3,464 Advanced deposits 1,948 5,653 Accrued compensation 7,385 5,430 Income taxes payable 322 409 Accrued product warranty 2,031 2,638 Accrued restructuring 103 717 Total $ 23,002 $ 38,383
Schedule of Product Warranty Liability [Table Text Block]	Three Months Ended December 31, Nine Months Ended December 31, 2023 2022 2023 2022 Balance at beginning of period $ 1,892 $ 2,053 $ 2,638 $ 2,066 Provisions for warranties during the period 360 535 1,212 1,191 Settlements during the period (221 ) (592 ) (1,819 ) (1,261 ) Balance at end of period $ 2,031 $ 1,996 $ 2,031 $ 1,996

Note 13 - Contingent Consider_2

Note 13 - Contingent Consideration (Tables)	9 Months Ended
	Dec. 31, 2023
Notes Tables
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]	December 31, September 30, June 30, Fiscal Year 2023 2023 2023 2023 Revenue risk premium 5.70 % 5.30 % 5.20 % Revenue volatility 24.8 % 27.5 % 23 % Stock Price $ 11.14 $ 7.55 $ 6.26 Payment delay (days) 80 80 80 Fair value (millions) $ 1.2 $ 3.5 $ 2.6 March 31, December 31, September 30, June 30, March 31, Fiscal Year 2022 2023 2022 2022 2022 2022 Revenue risk premium 5.30 % 5.30 % 5.20 % 6.60 % 6.50 % Revenue volatility 25 % 25 % 25 % 30 % 33 % Stock Price $ 4.91 $ 3.68 $ 4.38 $ 5.18 $ 7.61 Payment delay (days) 80 80 80 80 80 Fair value (millions) $ 1.3 $ 0.9 $ 1.1 $ 1.4 $ 1.2

Note 15 - Leases (Tables)

Note 15 - Leases (Tables)	9 Months Ended
	Dec. 31, 2023
Notes Tables
Assets And Liabilities Lessee [Table Text Block]	December 31, 2023 March 31, 2023 Leases: Right-of-use assets - Financing $ - 1 Right-of-use assets - Operating 2,401 2,857 Total right-of-use assets 2,401 2,858 Lease liabilities - ST Financing $ - 1 Lease liabilities - ST Operating 680 807 Lease liabilities - LT Operating 1,861 2,184 Total lease liabilities $ 2,541 2,992 Weighted-average remaining lease term 3.5 years 3.95 years Weighted-average discount rate 8.68 % 6.46 %
Lease, Cost [Table Text Block]	Three Months Ended Nine Months Ended December 31, 2023 December 31, 2023 Operating Leases: Operating lease costs - fixed $ 303 $ 817 Operating lease costs - variable 39 119 Short-term lease costs 37 111 Total lease costs $ 379 $ 1,047 Three Months Ended Nine Months Ended December 31, 2022 December 31, 2022 Operating Leases: Operating lease costs - fixed $ 256 $ 765 Operating lease costs - variable 41 118 Short-term lease costs 30 92 Total lease costs $ 327 $ 975
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]	Leases Year ending March 31, 2024 $ 234 2025 841 2026 793 2027 646 2028 392 Thereafter 15 Total minimum lease payments 2,921 Less: interest (380 ) Present value of lease liabilities 2,541

Note 17 - Restructuring (Tables

Note 17 - Restructuring (Tables)	9 Months Ended
	Dec. 31, 2023
Notes Tables
Restructuring and Related Costs [Table Text Block]	Severance pay and benefits Accrued restructuring balance at April 1, 2023 $ 717 Charges to operations (14 ) Cash payments (600 ) Accrued restructuring balance at December 31, 2023 $ 103 Severance pay and benefits Accrued restructuring balance at April 1, 2022 $ — Charges to operations 1,048 Cash payments (331 ) Accrued restructuring balance at March 31, 2023 $ 717

Note 18 - Business Segments (Ta

Note 18 - Business Segments (Tables)	9 Months Ended
	Dec. 31, 2023
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Three Months Ended December 31, Nine Months Ended December 31, 2023 2022 2023 2022 Revenues: Grid $ 33,603 $ 20,809 $ 87,854 $ 66,337 Wind 5,750 3,072 15,757 7,904 Total $ 39,353 $ 23,881 $ 103,611 $ 74,241 Three Months Ended December 31, Nine Months Ended December 31, 2023 2022 2023 2022 Operating income (loss): Grid $ 268 $ (7,064 ) $ (2,383 ) $ (20,840 ) Wind 286 (924 ) (112 ) (2,178 ) Unallocated corporate expenses (1,992 ) (1,221 ) (6,646 ) (3,152 ) Total $ (1,438 ) $ (9,209 ) $ (9,141 ) $ (26,170 )
Reconciliation of Assets from Segment to Consolidated [Table Text Block]	December 31, 2023 March 31, 2023 Grid $ 128,395 $ 135,296 Wind 12,933 14,361 Corporate assets 25,015 25,904 Total $ 166,343 $ 175,561

Note 1 - Nature of the Busine_2

Note 1 - Nature of the Business and Operations and Liquidity (Details Textual) - USD ($) $ in Thousands	6 Months Ended	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Mar. 31, 2023	Feb. 28, 2021
Retained Earnings (Accumulated Deficit)		$ (1,065,079)		$ (1,055,547)
Cash, Cash Equivalents, and Marketable Securities		24,000
Net Cash Provided by (Used in) Operating Activities		(97)	$ (17,067)
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent	5%
Restructuring and Related Cost, Expected Cost	$ 1,000
Payments for Restructuring		900
Restructuring Reserve		103		$ 717
Restructuring and Related Cost, Expected Annual Savings		$ 5,000
Inox Wind Limited [Member]
Supply Commitment, Default, Letters of Credit to be Received					$ 250,000

Note 2 - Revenue Recognition 1

Note 2 - Revenue Recognition 1 (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Revenue, Performance Obligation Satisfied, Revenue Recognized, Percentage	85%	87%	80%	80%
Contract With Customer Loss Accrual		$ 1.6		$ 3.2
Contract With Customer Loss Accrual Reduction	$ 2.5		$ 3.4
Minimum [Member]
Warranty Period (Year)			1 year
Contract with Customer, Payment Term (Day)			30 days
Maximum [Member]
Warranty Period (Year)			3 years
Extended Service Warranty, Term (Year)			4 years
Contract with Customer, Payment Term (Day)			60 days

Note 2 - Revenue Recognition 2

Note 2 - Revenue Recognition 2 (Details Textual) $ in Millions	Dec. 31, 2023 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Month)	12 months
Revenue, Remaining Performance Obligation, Amount	$ 137.2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Amount	$ 30.2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Minimum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Month)	13 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Maximum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Month)	60 months

Note 2 - Revenue Recognition -

Note 2 - Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Revenues	$ 39,353	$ 23,881	$ 103,611	$ 74,241
Grid [Member]
Revenues	33,603	20,809	87,854	66,337
Grid [Member] | Americas [Member]
Revenues	26,782	17,010	74,640	51,934
Grid [Member] | Asia Pacific [Member]
Revenues	3,704	1,760	8,832	10,615
Grid [Member] | EMEA [Member]
Revenues	3,117	2,039	4,382	3,788
Wind [Member]
Revenues	5,750	3,072	15,757	7,904
Wind [Member] | Americas [Member]
Revenues	45	19	102	19
Wind [Member] | Asia Pacific [Member]
Revenues	5,660	3,053	15,587	7,815
Wind [Member] | EMEA [Member]
Revenues	45	0	68	70
Equipment and Systems [Member] | Grid [Member]
Revenues	31,210	19,475	81,181	61,680
Equipment and Systems [Member] | Wind [Member]
Revenues	4,983	2,842	13,844	6,144
Services and Technology Development [Member] | Grid [Member]
Revenues	2,393	1,334	6,673	4,657
Services and Technology Development [Member] | Wind [Member]
Revenues	$ 767	$ 230	$ 1,913	$ 1,760

Note 2 - Revenue Recognition _2

Note 2 - Revenue Recognition - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Unbilled AR, beginning balance	$ 9,958	$ 6,492
Deferred Program Costs, beginning balance	2,136	858
Contract Liabilities, beginning balance	50,760	30,034
Deferred Program Costs, increases for costs incurred to fulfill performance obligations	2,714	909
Unbilled AR, increase (decrease) due to customer billings	(18,354)	(11,723)
Increase (decrease) due to customer billings	55,018	48,013
Deferred Program Costs, decrease due to cost recognition on completed performance obligations	(3,518)	(791)
Unbilled AR, increase (decrease) due to recognition of revenue based on transfer of control of performance obligations	12,969	9,544
Increase (decrease) due to recognition of revenue based on transfer of control of performance obligations	(46,190)	(36,452)
Unbilled AR, other changes and FX impact	15	0
Deferred Program Costs, other changes and FX impact	5	(15)
Other changes and FX impact	155	(180)
Unbilled AR, ending balance	4,588	4,313
Deferred Program Costs, ending balance	1,337	961
Contract Liabilities, ending balance	$ 59,743	$ 41,415

Note 2 - Revenue Recognition _3

Note 2 - Revenue Recognition - Revenues by Major Customers (Details) - Revenue Benchmark [Member] - Customer Concentration Risk [Member]	3 Months Ended	9 Months Ended
	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Inox Wind Limited [Member] | Wind [Member]
Concentration of risk, revenue	11%	12%
Fuji Bridex Pte Ltd [Member] | Grid [Member]
Concentration of risk, revenue			10%

Note 3 - Stock-based Compensa_3

Note 3 - Stock-based Compensation (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Restricted Stock [Member]
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture (in shares)	0	550,000	681,500	888,500
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 5.8		$ 5.8
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			1 year 8 months 12 days
Restricted Stock [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			2 years
Immediately Vested Common Stock [Member]
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture (in shares)	0	0	53,675	25,806
Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)				2 years
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 0.1		$ 0.1
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			4 months 24 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)	0	0	0	20,564

Note 3 - Stock-based Compensa_4

Note 3 - Stock-based Compensation - Stock-based Compensation Expense by Financial Statement Line Item (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Total stock-based compensation expense	$ 1,140	$ 1,440	$ 3,608	$ 3,492
Cost of Sales [Member]
Total stock-based compensation expense	62	89	230	195
Research and Development Expense [Member]
Total stock-based compensation expense	158	214	469	570
Selling, General and Administrative Expenses [Member]
Total stock-based compensation expense	$ 920	$ 1,137	$ 2,909	$ 2,727

Note 3 - Stock-based Compensa_5

Note 3 - Stock-based Compensation - Weighted Average Assumptions (Details)	9 Months Ended
	Dec. 31, 2022
Expected volatility	71.40%
Risk-free interest rate	3.10%
Expected life (years) (Year)	6 years 1 month 20 days

Note 4 - Computation of Net L_3

Note 4 - Computation of Net Loss Per Common Share (Details Textual) - shares shares in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	0.3	1.1	0.3	1.1
Shares Tied to Derivative Liability [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	0.3	1	0.3	1
Share-Based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	0.1	0.1	0.1	0.1

Note 4 - Computation of Net L_4

Note 4 - Computation of Net Loss Per Common Share - Reconciliation of Numerators and Denominators of EPS Calculation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2023	Dec. 31, 2022
Net loss	$ (1,649)	$ (2,485)	$ (5,398)	$ (9,581)	$ (9,881)	$ (8,710)	$ (9,532)	$ (28,171)
Weighted-average shares of common stock outstanding (in shares)	30,547			29,354			30,180	28,884
Weighted-average shares subject to repurchase (in shares)	(1,455)			(1,400)			(1,452)	(1,090)
Shares used in per-share calculation ? basic (in shares)	29,092			27,954			28,728	27,794
Shares used in per-share calculation ? diluted (in shares)	29,092			27,954			28,728	27,794
Net loss per share ? basic (in dollars per share)	$ (0.06)			$ (0.34)			$ (0.33)	$ (1.01)
Net loss per share ? diluted (in dollars per share)	$ (0.06)			$ (0.34)			$ (0.33)	$ (1.01)

Note 5 - Goodwill and Other I_3

Note 5 - Goodwill and Other Intangibles (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Goodwill, Impairment Loss	$ 0		$ 0
Customer Relationship, Core Technology and Know-how [Member]
Amortization of Intangible Assets	500	$ 700	1,600	$ 2,100
Backlog [Member]
Amortization of Intangible Assets	$ 0		$ 100	$ 100

Note 5 - Goodwill and Other I_4

Note 5 - Goodwill and Other Intangibles - Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Accumulated Amortization	$ (11,144)	$ (9,524)
Net Book Value			$ 5,107
Intangible assets, gross amount	18,051	18,051
Intangible assets, net	6,907	8,527
Trade Names [Member]
Trade name and trademarks	1,800	1,800
Backlog [Member]
Gross Amount	681	681
Accumulated Amortization	(681)	(675)
Net Book Value	$ 0	6
Estimated Useful Life (Year)	2 years
Customer Relationships [Member]
Gross Amount	$ 9,600	9,600
Accumulated Amortization	(6,232)	(4,980)
Net Book Value	$ 3,368	4,620
Estimated Useful Life (Year)	7 years
Core Technology and Know-how [Member]
Gross Amount	$ 5,970	5,970
Accumulated Amortization	(4,231)	(3,869)
Net Book Value	$ 1,739	$ 2,101
Core Technology and Know-how [Member] | Minimum [Member]
Estimated Useful Life (Year)	5 years
Core Technology and Know-how [Member] | Maximum [Member]
Estimated Useful Life (Year)	10 years

Note 5 - Goodwill and Other I_5

Note 5 - Goodwill and Other Intangibles - Expected Future Amortization Expense (Details) $ in Thousands	Dec. 31, 2022 USD ($)
2024	$ 538
2025	1,648
2026	1,221
2027	1,085
2028	543
Thereafter	72
Total	$ 5,107

Note 6 - Fair Value Measureme_3

Note 6 - Fair Value Measurements (Details Textual) - shares	Dec. 31, 2023	Oct. 01, 2020
Northeast Power Systems, Inc (NEPSI) [Member]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High, Number of Shares (in shares)	300,000	1,000,000

Note 6 - Fair Value Measureme_4

Note 6 - Fair Value Measurements - Assets and Liabilities Carried at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022
Fair value (millions)	$ 1,200	$ 3,500	$ 2,600	$ 1,300	$ 900	$ 1,100	$ 1,400	$ 1,200
Fair Value, Recurring [Member] | Reported Value Measurement [Member]
Cash equivalents	9,936			7,913
Fair value (millions)	1,230			1,270
Fair Value, Recurring [Member] | Reported Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash equivalents	9,936			7,913
Fair value (millions)	0			0
Fair Value, Recurring [Member] | Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash equivalents	0			0
Fair value (millions)	0			0
Fair Value, Recurring [Member] | Reported Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Cash equivalents	0			0
Fair value (millions)	$ 1,230			$ 1,270

Note 6 - Fair Value Measureme_5

Note 6 - Fair Value Measurements - Derivative Liability Measured at Fair value (Details) - Derivative Financial Instruments, Liabilities [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 31, 2023	Mar. 31, 2023
Balance	$ 1,270	$ 1,200
Change in fair value	3,052	70
Settlement of contingent consideration	(3,092)
Balance	$ 1,230	$ 1,270

Note 7 - Accounts Receivable -

Note 7 - Accounts Receivable - Summary of Accounts Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Accounts receivable (billed)	$ 20,133	$ 20,707
Accounts receivable (unbilled)	4,588	9,958
Accounts receivable, net	$ 24,721	$ 30,665

Note 8 - Inventory (Details Tex

Note 8 - Inventory (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Inventory Write-down	$ 500	$ 200	$ 1,536	$ 1,247

Note 8 - Inventory - Summary of

Note 8 - Inventory - Summary of Net Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Raw materials	$ 21,197	$ 16,654
Work-in-process	16,571	15,200
Finished goods	5,092	2,996
Deferred program costs	1,337	2,136
Net inventory	$ 44,197	$ 36,986

Note 9 - Prepaid and Other Cu_2

Note 9 - Prepaid and Other Current Assets (Details Textual) - USD ($) $ in Millions	3 Months Ended			9 Months Ended	12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Employee Retention Credits Receivable						$ 3.3
Proceeds From Employee Retention Credit				$ 3
Cost of Sales [Member]
Employee Retention Credits Benefit					$ 1.8
Selling, General and Administrative Expenses [Member]
Employee Retention Credits Benefit					0.8
Research and Development Expense [Member]
Employee Retention Credits Benefit					0.7
Prepaid Expenses and Other Current Assets [Member]
Employee Retention Credits Receivable					$ 3.3
Maximum [Member]
Percentage of Qualified Wages Paid	70%	70%	50%

Note 10 - Property, Plant and_3

Note 10 - Property, Plant and Equipment (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Depreciation, Depletion and Amortization	$ 0.6	$ 0.6	$ 1.7	$ 2

Note 10 - Property, Plant and_4

Note 10 - Property, Plant and Equipment - Cost and Accumulated Depreciation of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Property, plant and equipment, gross	$ 59,278	$ 58,651
Less accumulated depreciation	(48,073)	(46,342)
Property, plant and equipment, net	11,205	12,309
Land [Member]
Property, plant and equipment, gross	980	980
Construction in Progress [Member]
Property, plant and equipment, gross	245	748
Building [Member]
Property, plant and equipment, gross	5,416	5,416
Equipment and Software [Member]
Property, plant and equipment, gross	44,203	43,156
Finance Lease, Right-of-use [Member]
Property, plant and equipment, gross	0	1
Furniture and Fixtures [Member]
Property, plant and equipment, gross	1,537	1,535
Leasehold Improvements [Member]
Property, plant and equipment, gross	$ 6,897	$ 6,815

Note 11 - Accounts Payable an_3

Note 11 - Accounts Payable and Accrued Expenses (Details Textual)	9 Months Ended
	Dec. 31, 2023
Minimum [Member]
Extended Warranty Trigger Period (Year)	1 year
Maximum [Member]
Extended Warranty Trigger Period (Year)	3 years

Note 11 - Accounts Payable an_4

Note 11 - Accounts Payable and Accrued Expenses - Summary of Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Accounts payable	$ 5,867	$ 13,935
Accrued inventories in-transit	928	2,267
Accrued other miscellaneous expenses	4,363	3,870
Accrued contract loss	55	3,464
Advanced deposits	1,948	5,653
Accrued compensation	7,385	5,430
Income taxes payable	322	409
Accrued product warranty	2,031	2,638
Accrued restructuring	103	717
Total	$ 23,002	$ 38,383

Note 11 - Accounts Payable an_5

Note 11 - Accounts Payable and Accrued Expenses - Product Warranty Activity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Balance at beginning of period	$ 1,892	$ 2,053	$ 2,638	$ 2,066
Provisions for warranties during the period	360	535	1,212	1,191
Settlements during the period	(221)	(592)	(1,819)	(1,261)
Balance at end of period	$ 2,031	$ 1,996	$ 2,031	$ 1,996

Note 12 - Income Taxes (Details

Note 12 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Income Tax Expense (Benefit)	$ 63	$ 127	$ 291	$ 144
Liability for Uncertainty in Income Taxes, Current	0		0
Unrecognized Tax Benefits	$ 0		$ 0
Maximum [Member]
Income Tax Expense (Benefit)		$ 100

Note 13 - Contingent Consider_3

Note 13 - Contingent Consideration (Details Textual) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Oct. 01, 2020	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability		$ 852	$ (220)	$ 3,052	$ (340)
Northeast Power Systems, Inc (NEPSI) [Member]
Payments to Acquire Businesses, Gross	$ 26,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)	873,657	399,999		399,999
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High, Number of Shares (in shares)	1,000,000	300,000		300,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable		$ 3,100		$ 3,100
Business Combination, Contingent Consideration Arrangements, Number of Issuable Shares (in shares)		300,000		300,000

Note 13 - Contingent Consider_4

Note 13 - Contingent Consideration - Summary of the Key Assumptions Used to Calculate Fair Value of Warrants (Details) $ in Millions	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)
Fair value (millions)	$ 1.2	$ 3.5	$ 2.6	$ 1.3	$ 0.9	$ 1.1	$ 1.4	$ 1.2
Measurement Input, Revenue Risk Premium [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	5.7	5.3	5.2	5.3	5.3	5.2	6.6	6.5
Measurement Input, Revenue Volatility [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	24.8	27.5	23	25	25	25	30	33
Measurement Input, Share Price [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	11.14	7.55	6.26	4.91	3.68	4.38	5.18	7.61
Measurement Input, Payment Delay [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	80	80	80	80	80	80	80	80

Note 14 - Debt (Details Textual

Note 14 - Debt (Details Textual) $ in Thousands	Dec. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	May 06, 2021
Debt, Current	$ 41	$ 75
Equipment Financing Agreements Assumed In Business Acquisition [Member]
Debt, Current		$ 100
Neeltran Inc. [Member]
Business Combination, Number of Equipment Financing Agreement Assumed			4

Note 15 - Leases (Details Textu

Note 15 - Leases (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Property and Equipment, Net [Member]
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	$ 0	$ 1
Maximum [Member]
Lessee, Operating Lease, Renewal Term (Year)	5 years
Maximum [Member] | Property and Equipment, Net [Member]
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	$ 0

Note 15 - Leases - Operating Le

Note 15 - Leases - Operating Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Right-of-use assets	$ 2,401	$ 2,857
Total right-of-use assets	2,401	2,858
Total lease liabilities	$ 2,541	$ 2,992
Weighted-average remaining lease term (Year)	3 years 6 months	3 years 9 months 14 days
Weighted-average discount rate	8.68%	6.46%
Property and Equipment, Net [Member]
Right-of-use assets - Financing	$ 0	$ 1
Lease Liability Current Portion [Member]
Lease liabilities - ST Financing	0	1
Lease liabilities - ST Operating	680	807
Lease Liability Long Term Portion [Member]
Lease liabilities - LT Operating	$ 1,861	$ 2,184

Note 15 - Leases - Lease Cost (

Note 15 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Operating lease costs - fixed	$ 303	$ 256	$ 817	$ 765
Operating lease costs - variable	39	41	119	118
Short-term lease costs	37	30	111	92
Total lease costs	$ 379	$ 327	$ 1,047	$ 975

Note 15 - Leases - Minimum Futu

Note 15 - Leases - Minimum Future Lease Obligation (Details) $ in Thousands	Dec. 31, 2023 USD ($)
2024	$ 234
2025	841
2026	793
2027	646
2028	392
Thereafter	15
Total minimum lease payments	2,921
Less: interest	(380)
Lease Liability [Member]
Present value of lease liabilities	$ 2,541

Note 16 - Commitments and Con_2

Note 16 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Restricted Cash and Cash Equivalents, Noncurrent	$ 379	$ 582
Restricted Cash and Cash Equivalents, Current	$ 700	$ 1,700

Note 17 - Restructuring (Detail

Note 17 - Restructuring (Details Textual) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Jan. 24, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Mar. 31, 2023
Restructuring and Related Cost, Workforce To be Reduced Percentage	5%
Restructuring Charges		$ 0	$ 0	$ (14)	$ 0
Employee Severance [Member]
Restructuring Charges	$ 1,000			$ (14)		$ 1,048

Note 17 - Restructuring - Restr

Note 17 - Restructuring - Restructuring Charges and Cash Payments (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Jan. 24, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Mar. 31, 2023
Accrued restructuring balance				$ 717
Restructuring Charges		$ 0	$ 0	(14)	$ 0
Cash payments restructuring				(900)
Accrued restructuring balance		103		103		$ 717
Employee Severance [Member]
Accrued restructuring balance				717	$ 0	0
Restructuring Charges	$ 1,000			(14)		1,048
Cash payments restructuring				(600)		(331)
Accrued restructuring balance		$ 103		$ 103		$ 717

Note 18 - Business Segments (De

Note 18 - Business Segments (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($)
Number of Reportable Segments			2
Number of Operating Segments			4
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$ 852	$ (220)	$ 3,052	$ (340)
Share-Based Payment Arrangement, Expense	1,140	1,440	3,608	3,492
Corporate, Non-Segment [Member]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$ 900	200	$ 3,100	(300)
Potential Stock Options To Be Distributed (in shares) | shares	300,000		300,000
Share-Based Payment Arrangement, Expense	$ 1,100	$ 1,400	$ 3,600	$ 3,500

Note 18 - Business Segments - O

Note 18 - Business Segments - Operating Results for Business Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Revenues	$ 39,353	$ 23,881	$ 103,611	$ 74,241
Operating Income (loss)	(1,438)	(9,209)	(9,141)	(26,170)
Corporate, Non-Segment [Member]
Operating Income (loss)	(1,992)	(1,221)	(6,646)	(3,152)
Grid [Member]
Revenues	33,603	20,809	87,854	66,337
Grid [Member] | Operating Segments [Member]
Revenues	33,603	20,809	87,854	66,337
Operating Income (loss)	268	(7,064)	(2,383)	(20,840)
Wind [Member]
Revenues	5,750	3,072	15,757	7,904
Wind [Member] | Operating Segments [Member]
Revenues	5,750	3,072	15,757	7,904
Operating Income (loss)	$ 286	$ (924)	$ (112)	$ (2,178)

Note 18 - Business Segments - T

Note 18 - Business Segments - Total Business Segments Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Total assets	$ 166,343	$ 175,561
Operating Segments [Member] | Grid [Member]
Total assets	128,395	135,296
Operating Segments [Member] | Wind [Member]
Total assets	12,933	14,361
Corporate, Non-Segment [Member]
Total assets	$ 25,015	$ 25,904