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Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2022
Equity [Abstract]  
Summary of Outstanding Warrants A summary of the change in fair value of the warrant liability is set forth below:
20222021
Balance, beginning of year$3,605 $1,614 
Warrant issued— — 
Warrant Exercised— (16,148)
Change in fair value of warrant liability(3,349)18,139 
Balance, end of year$256 $3,605 
A summary of our outstanding warrants is set forth below:
December 31, 2022December 31, 2021
Warrant TypeCash Exercise
Price per
share
Number of warrantsCash Exercise
Price per
share
Number of warrants
2020 Convertible Notes warrant$1.42 2,811,315 $2.25 1,780,000 
Common stock warrant (Series D-1)$— — $2.25 35,555 
Common stock warrants (Series F)$9.22 377,402 $9.22 377,402 
Public Warrants (PHUNW)$11.50 1,761,291 $11.50 1,761,291 
Private Placement Warrants$11.50 1,658,381 $11.50 1,658,381 
Unit Purchase Option Warrants$11.50 24,172 $11.50 24,172 
Total6,632,561 5,636,801