Phunware, Inc. Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Warrants (Details) - $ / shares	Mar. 31, 2022	Dec. 31, 2021
Class of Warrant or Right [Roll Forward]
Number of warrants (in shares)	5,636,801	5,636,801
2020 Convertible Note warrant
Class of Warrant or Right [Roll Forward]
Exercise price per share (in dollars per share)	$ 2.25	$ 2.25
Number of warrants (in shares)	1,780,000	1,780,000
Common stock warrant (Series D-1)
Class of Warrant or Right [Roll Forward]
Exercise price per share (in dollars per share)	$ 2.25	$ 2.25
Number of warrants (in shares)	35,555	35,555
Common stock warrants (Series F)
Class of Warrant or Right [Roll Forward]
Exercise price per share (in dollars per share)	$ 9.22	$ 9.22
Number of warrants (in shares)	377,402	377,402
Public warrants (PHUNW)
Class of Warrant or Right [Roll Forward]
Exercise price per share (in dollars per share)	$ 11.50	$ 11.50
Number of warrants (in shares)	1,761,291	1,761,291
Private placement warrants
Class of Warrant or Right [Roll Forward]
Exercise price per share (in dollars per share)	$ 11.50	$ 11.50
Number of warrants (in shares)	1,658,381	1,658,381
Unit purchase option warrants
Class of Warrant or Right [Roll Forward]
Exercise price per share (in dollars per share)	$ 11.50	$ 11.50
Number of warrants (in shares)	24,172	24,172