| Cover | Dec. 12, 2023 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 12, 2023 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-40223 |
| Entity Registrant Name | Golden Arrow Merger Corp. |
| Entity Central Index Key | 0001841125 |
| Entity Tax Identification Number | 86-1256660 |
| Entity Incorporation, State or Country Code | DE |
| 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 |
| City Area Code | 212 |
| Local Phone Number | 430-2214 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Units, each consisting of one share of Class A Common Stock and one-third of one redeemable Warrant | |
| 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, par value $0.0001 per share | |
| Title of 12(b) Security | Class A Common Stock, par value $0.0001 per share |
| Trading Symbol | GAMC |
| Security Exchange Name | NASDAQ |
| Warrants, each whole warrant exercisable for one share of Class A Common Stock at an exercise price of $11.50 | |
| Title of 12(b) Security | Warrants, each whole warrant exercisable for one share of Class A Common Stock at an exercise price of $11.50 |
| Trading Symbol | GAMCW |
| Security Exchange Name | NASDAQ |
