| Document and Entity Information | Aug. 08, 2023 |
| Document And Entity Information [Line Items] | |
| Entity Registrant Name | Dave Inc./DE |
| Amendment Flag | false |
| Entity Central Index Key | 0001841408 |
| Document Type | 8-K |
| Document Period End Date | Aug. 08, 2023 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-40161 |
| Entity Tax Identification Number | 86-1481509 |
| Entity Address, Address Line One | 1265 South Cochran Avenue |
| Entity Address, City or Town | Los Angeles |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 90019 |
| City Area Code | (844) |
| Local Phone Number | 857-3283 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Common Stock Par Value Of 0.0001 Per Share 2 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Common Stock, par value of $0.0001 per share |
| Trading Symbol | DAVE |
| Security Exchange Name | NASDAQ |
| Warrants Each Exercisable For One Share Of Common Stock For 368.00 Per Share 1 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Warrants, each exercisable for one share of Common Stock for $368.00 per share |
| Trading Symbol | DAVEW |
| Security Exchange Name | NASDAQ |
