| Document and Entity Information | Jan. 27, 2022 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Jan. 27, 2022 |
| Entity Registrant Name | Dave Inc./DE |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-40161 |
| Entity Tax Identification Number | 86-1481509 |
| Entity Address, Address Line One | 750 N. San Vicente Blvd. 900W |
| Entity Address, City or Town | West Hollywood |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 90069 |
| 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 |
| Amendment Flag | false |
| Entity Central Index Key | 0001841408 |
| Former Address [Member] | |
| Document Information [Line Items] | |
| 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 | 90069 |
| Class A [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Class A Common Stock, par value of $0.0001 per share |
| Trading Symbol | DAVE |
| Security Exchange Name | NASDAQ |
| Warrants, each exercisable for one share of Class A Common Stock for $11.50 per share [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Warrants, each exercisable for one share of Class A Common Stock for $11.50 per share |
| Trading Symbol | DAVEW |
| Security Exchange Name | NASDAQ |
