Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

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Document and Entity Information - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Mar. 31, 2022
Jul. 11, 2022
Sep. 30, 2021
Cover [Abstract]      
Entity Central Index Key 0001009759    
Document Type 10-K/A    
Document Period End Date Mar. 31, 2022    
Document Annual Report true    
Document Transition Report false    
Entity File Number 001-15957    
Entity Registrant Name CAPSTONE GREEN ENERGY HOLDINGS, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 20-1514270    
Entity Address, Address Line One 16640 Stagg Street    
Entity Address, City or Town Van Nuys    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 91406    
City Area Code 818    
Local Phone Number 734-5300    
Title of 12(b) Security Common Stock, par value $.001 per share    
Entity Listing, Par Value Per Share $ 0.001    
No Trading Symbol Flag true    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status No    
Entity Interactive Data Current No    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Public Float     $ 51.7
Entity Common Stock, Shares Outstanding   15,315,565  
Current Fiscal Year End Date --03-31    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Amendment Flag true    
Amendment Description EXPLANATORY NOTE All references in this Annual Report on Form 10-K/A to "the Company," "we," "us," "our," or "Capstone" are to Capstone Green Energy Corporation and its consolidated subsidiaries prior to the Effective Date (as defined below) and to Capstone Green Energy Holdings, Inc. and its consolidated subsidiaries following the Effective Date. As previously disclosed in the Current Report on Form 8-K of the Company with the SEC on September 19, 2023, the Audit Committee of the Board Directors of the Company (the "Audit Committee"), in consultation with Company's management, concluded that, as a result of apparent errors primarily related to revenue recognition associated with bill and hold transactions, certain previously issued consolidated financial statements were materially incorrect and should no longer be relied upon. As a result of the Investigation and additional procedures performed by management, the Audit Committee and management, in consultation with the Company's independent auditors, determined that certain previously issued financial statements were required to be restated to correct for the following: (i) Revenue recognition related to bill-and-hold arrangements; (ii) Accounting for factory protection plan contracts; and (iii) Reclassification of term note payable. As previously reported in the Current Report on Form 8-K of the "Company filed with the Securities and Exchange Commission (the "SEC") on September 28, 2023, the Company and its wholly owned direct subsidiaries, Capstone Turbine International, Inc. and Capstone Turbine Financial Services, LLC. (together with the Company, the "Debtors"), commenced voluntary proceedings under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the District of Delaware (the "Bankruptcy Court"). Concurrent with the petition, the Debtors (i) entered into the Transaction Support Agreement ("TSA") with the pre-petition senior secured creditor, Broad Street Credit Holdings, LLC. ("Broad Street"), and Goldman Sachs Specialty Lending Group, L.P. (the "Collateral Agent") and (ii) filed with the Bankruptcy Court a joint prepackaged Chapter 11 plan of reorganization (as amended, restated, supplemented or otherwise modified from time to time, the "Plan"). On October 24, 2023, in accordance with the TSA and the Plan, the Debtors filed a supplement to the Plan (the "Plan Supplement") with the Bankruptcy Court. On November 9, 2023, the Debtors filed certain additional exhibits to the Plan Supplement. On November 14, 2023, the Bankruptcy Court entered an order (the "Confirmation Order") confirming the Plan, including the Plan Supplement and all exhibits and schedules thereto, and all other documents filed in connection with the Plan. On December 7, 2023 (the "Effective Date"), the Plan, including the Plan Supplement and all exhibits and schedules thereto, became effective in accordance with its terms and the Debtors emerged from the Chapter 11 Cases (as defined below) without any need for further action or order of the Bankruptcy Court. In connection with the Plan, on December 7, 2023, the Company completed a series of transactions pursuant to which, among other things, Capstone Turbine International, Inc. was re-named "Capstone Green Energy Holdings, Inc." and became the successor to Capstone Green Energy Corporation for SEC reporting purposes by operation of Rule 12g-3(a) under the Securities Exchange Act of 1934, as amended. The Company is filing this Amendment No. 1 (the "Amendment No. 1") to the Company's Annual Report on Form 10-K for the year ended March 31, 2022, originally filed with the Securities and Exchange Commission on July 14, 2023 (the "Original Report"). This Amendment No. 1 is being filed to restate certain information presented in the Original Report.    
Auditor Name Marcum LLP    
Auditor Firm ID 688    
Auditor Location Los Angeles, CA