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Stock Incentive and Employee Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2021
Compensation And Employee Benefit Plans [Abstract]  
Summary Of Share Based Payment Award Options Issued To Employees And Nonemployees Valuation Assumptions
assumptions used in the Black-Scholes option-pricing method related to options issued to employees and nonemployees for the years ended 2020 and 2019 is set forth below:
 
 
 
Year Ended December 31,
 
 
2020
 
 
2019
 
Weighted-average grant date fair value
     $0.83         $0.87  
Expected dividend yield
     0.00%       0.00%  
Expected stock-price volatility
     90.00%       89.00%
 - 
104.00%
 
Risk-free interest rate
     0.53%       1.63%
 - 
2.50%
 
Term of options
     5.60       5.76
 - 
6.08
 
Fair value per share of common stock on date of grant
     $1.16       $1.16  
Exercise price
     $1.16       $1.16  
Summary Of The Options Outstanding
The following represents a summary of the options outstanding at December 31, 2021, 2020, and 2019 changes during the years then ended (in thousands, other than weighted-average exercise price):
 
 
  
Options
 
  
Weighted
average
exercise price
 
  
Aggregate
Intrinsic
Value
 
Outstanding at December 31, 2018
     4,781      $ 0.63      $ 1,291  
Granted
     21,468        1.16           
Exercised
     —          —             
Forfeited/Cancelled
     (838      0.94           
    
 
 
    
 
 
    
 
 
 
Outstanding at December 31, 2019
     25,411        1.07        2,183  
Granted
     6,194        1.16           
Exercised
     (56      0.90           
Forfeited/Cancelled
     (745      0.94           
    
 
 
    
 
 
    
 
 
 
Outstanding at December 31, 2020
     30,804        1.10        2,172  
Granted
  
 
—  
 
  
 
—  
 
  
     
Exercised
  
 
—  
 
  
 
—  
 
  
     
Forfeited/Cancelled
  
 
(2,641
  
 
0.68
 
  
     
 
  
 
 
 
  
 
 
 
  
 
 
 
Outstanding at December 31, 2021
  
 
28,163
 
  
$
1.13
 
  
$
915
 
Exercisable at December 31, 2021
  
 
17,177
 
  
$
1.11