| Cover | Oct. 13, 2021 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Oct. 13, 2021 |
| Entity Registrant Name | PHUNWARE, INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-37862 |
| Entity Tax Identification Number | 30-1205798 |
| Entity Address, Address Line One | 7800 Shoal Creek Blvd |
| Entity Address, Address Line Two | Suite 230-S |
| Entity Address, City or Town | Austin |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 78757 |
| City Area Code | 512 |
| Local Phone Number | 693-4199 |
| 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 |
| Entity Central Index Key | 0001665300 |
| Amendment Flag | false |
| Common Stock, par value $0.0001 per share | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Common Stock, par value $0.0001 per share |
| Trading Symbol | PHUN |
| Security Exchange Name | NASDAQ |
| Warrants to purchase one share of Common Stock | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Warrants to purchase one share of Common Stock |
| Trading Symbol | PHUNW |
| Security Exchange Name | NASDAQ |
