Phunware, Inc. Annual report pursuant to Section 13 and 15(d)

Debt - Summary of Calculated Aggregate Fair Values and Assumptions (Details) - Warrants	Dec. 31, 2020 $ / shares	Jul. 15, 2020 $ / shares
Class of Warrant or Right [Line Items]
Warrant, term		3 years
Strike price per share
Class of Warrant or Right [Line Items]
Warrant liability, measurement input	4.00	4.00
Closing price per share
Class of Warrant or Right [Line Items]
Warrant liability, measurement input	1.26	1.44
Term (years)
Class of Warrant or Right [Line Items]
Warrant, term	2 years 6 months 10 days	3 years
Volatility
Class of Warrant or Right [Line Items]
Warrant liability, measurement input	1.46	1.77
Risk-free rate
Class of Warrant or Right [Line Items]
Warrant liability, measurement input	0.0017	0.0018
Dividend Yield
Class of Warrant or Right [Line Items]
Warrant liability, measurement input	0	0