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Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Mar. 15, 2024
Jun. 30, 2023
Document Information [Line Items]      
Document Type 10-K/A    
Document Annual Report true    
Document Transition Report false    
Document Financial Statement Error Correction [Flag] false    
Entity Interactive Data Current Yes    
ICFR Auditor Attestation Flag false    
Amendment Flag true    
Amendment Description Golden Arrow Merger Corp. (the “Company”) is filing this Amendment No. 1 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, originally filed with the Securities and Exchange Commission (the “SEC”) on March 15, 2024 (the “Original Filing”), to amend and restate certain items in the Original Filing to include information relating to the Company’s inadvertent disbursement of funds withdrawn from the Company’s trust account (as defined herein) which were restricted for payment of tax liabilities under the Company’s amended and restated certificate incorporation and the terms of the investment management trust agreement, dated March 16, 2021 (the “trust agreement”). The Company omitted certain information from the Original Filing relating to inadvertent disbursements made by the Company during 2023 for general corporate purposes. As discussed in this Amendment No. 1, upon discovery of the omission, management and the Sponsor (as defined herein) immediately took steps and made the withdrawn funds from the trust account whole.As a result of this omission, the Company’s audit committee concluded, after discussion with the Company’s management and its advisors, that the Company’s audited consolidated financial statements as of and for the year ended December 31, 2023 included in the Original Filing should no longer be relied upon and should be restated to provide information relating to such disbursements in Note 11 (Franchise and Income Tax Withdrawal). The omission and resulting restatement had no impact on the Company’s cash position or the balance held in its trust account as of December 31, 2023. The restatement also had no impact on the Company’s historical financial statements (other than the addition of certain information in Note 11 (Franchise and Income Tax Withdrawal) to the financial statements included in the Original Filing).The Company’s management has concluded that its disclosure controls and procedures remained ineffective as of December 31, 2023 due to the unremediated material weakness previously disclosed in Part II, Item 9A “Controls and Procedures” of the Original Filing, as well as the identification of an additional material weakness in internal control over financial reporting relating to the restatement and a disclosure control deficiency related to the omission described above. See additional disclosure included in Part II, Item 9A of this Amendment No. 1.The following items are amended in this Amendment No. 1: (i) Part II, Item 8. Financial Statements and Supplementary Data, Note 11 (Franchise and Income Tax Withdrawal); (ii) Part II, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations; (iii) Part II, Item 9A. Controls and Procedures; (iv) Part I, Item 1A. Risk Factors, and (v) Part IV, Item 15. Exhibits and Financial Statement Schedules. In accordance with Rule 12b-15 under the Securities and Exchange Act of 1934, as amended, we are also filing as exhibits to this Amendment No. 1 currently dated certifications required under Section 302 and Section 906 of the Sarbanes-Oxley Act of 2002.Except as described above, no other information included in the Original Filing is being amended or updated by this Amendment No. 1. Accordingly, this Amendment No. 1 should be read in conjunction with the Original Filing and the Company’s other filings with the SEC, together with any amendments to those filings, made subsequent to the Original Filing.    
Document Period End Date Dec. 31, 2023    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Information [Line Items]      
Entity Registrant Name GOLDEN ARROW MERGER CORP.    
Entity Central Index Key 0001841125    
Entity File Number 001-40223    
Entity Tax Identification Number 86-1256660    
Entity Incorporation, State or Country Code DE    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Shell Company true    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Public Float     $ 20.1
Entity Contact Personnel [Line Items]      
Entity Address, Address Line One 10 E. 53rd Street    
Entity Address, Address Line Two 13th Floor    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10022    
Entity Phone Fax Numbers [Line Items]      
City Area Code (212)    
Local Phone Number 430-2214    
Class A common stock, $0.0001 par value per share      
Entity Listings [Line Items]      
Title of 12(b) Security Class A common stock, $0.0001 par value per share    
Trading Symbol GAMC    
Security Exchange Name NASDAQ    
Warrants to purchase one share of Class A common stock      
Entity Listings [Line Items]      
Title of 12(b) Security Warrants to purchase one share of Class A common stock    
Trading Symbol GAMCW    
Security Exchange Name NASDAQ    
Units, each consisting of one share of Class A Common Stock and one-third of one redeemable Warrant      
Entity Listings [Line Items]      
Title of 12(b) Security Units, each consisting of one share of Class A common stock and one-third of one redeemable warrant    
Trading Symbol GAMCU    
Security Exchange Name NASDAQ    
Class A Common Stock      
Entity Listings [Line Items]      
Entity Common Stock, Shares Outstanding   7,625,437  
Class B Common Stock      
Entity Listings [Line Items]      
Entity Common Stock, Shares Outstanding   140,000