Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Narrative (Details)

v3.22.1
Stock Based Compensation - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Jan. 01, 2021
May 18, 2016
Apr. 05, 2016
Mar. 31, 2022
Jan. 31, 2022
Jun. 30, 2020
Aug. 31, 2019
May 31, 2018
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Common stock remaining for future issuance (in shares)       2,501,823         2,501,823    
Annual share reserve increase                 4.00%    
Total stock-based compensation                 $ 5,312,000 $ 1,448,000  
Granted (in shares)                 0    
Forfeited (in shares)                 0    
General and administrative                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Total stock-based compensation                 $ 4,184,000 1,045,000  
Sales and marketing                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Total stock-based compensation                 $ 841,000 $ 105,000  
Employee Stock Purchase Plan (ESPP)                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Common stock remaining for future issuance (in shares)       2,235,611         2,235,611    
Purchase price of common stock, percentage     85.00%                
Maximum portion of earning an employee may contribute to the ESPP Plan     15.00%                
Maximum annual amount of fair market value of the company's common stock that a participant may accrue the rights to purchase     $ 25,000                
Shares of common stock for future issuance (in shares)     500,000                
Automatic increase to shares authorized as percentage of outstanding stock at end of preceding year     1.00%                
Increase in shares available (in shares) 500,000                    
Special Advisor To The Board | General and administrative                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Total stock-based compensation                 $ 3,500,000    
Special Advisor To The Board | Sales and marketing                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Total stock-based compensation                 800,000    
Service Based Options                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Total stock-based compensation                 $ 5,300,000    
Granted (in shares)                 4,898,451    
Forfeited (in shares)                 1,445,139    
Outstanding intrinsic value       $ 100,000         $ 100,000    
Options vested (in shares)                 3,243,910    
Weighted average exercise price (in dollars per share)       $ 3.45         $ 3.45    
Fair value of options vested in period                 $ 7,200,000    
Compensation not yet recognized       $ 10,900,000         $ 10,900,000    
Period for recognition                 2 years 2 months 12 days    
Exercisable stock options (in shares)       16,088,040         16,088,040   12,650,978
Weighted average share price (in dollars per share)       $ 2.90         $ 2.90   $ 3.69
Weighted average remaining contractual term                 7 years   8 years 1 month 6 days
Service Based Options | Special Advisor To The Board                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Total stock-based compensation                 $ 4,300,000    
Service Based Options | Employee                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting period                 4 years    
Granted (in shares)       3,300,000              
Market Based Options                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Exercisable stock options (in shares)       1,000,000         1,000,000    
Weighted average share price (in dollars per share)       $ 3.29         $ 3.29    
Weighted average remaining contractual term                 2 years 2 months 12 days    
Granted (in shares)                 0    
Forfeited (in shares)                 0    
Options exercises in period (in shares)                 0    
Restricted Stock Awards                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting period                 4 years    
Employee Stock Purchase Plan (ESPP)                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Total stock-based compensation                 $ 43,200    
Retention Grant | Employee                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Granted (in shares)       1,000,000              
Reduction of Workforce Plan                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Forfeited (in shares)                 1,000,000    
Other Terminations                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Forfeited (in shares)                 400,000    
Restricted Stock Units                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Unvested restricted stock units (in shares)       11,250         11,250    
Weighted average grant date fair value (in dollars per share)       $ 4.50         $ 4.50    
Vested (in shares)                 0    
2016 Plan                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Increase in number of shares reserved for issuance (in shares)   600,000     4,511,768     1,400,000      
Common stock remaining for future issuance (in shares)   464,476                  
2016 Plan | Equity Option                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award expiration period                 10 years    
2016 Plan | Equity Option | Minimum | Director                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting period                 1 year    
2016 Plan | Equity Option | Maximum | Director                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting period                 3 years    
2016 Plan | Equity Option | Maximum | Employee                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Award vesting period                 4 years    
2016 Second Amended Plan                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Increase in number of shares reserved for issuance (in shares)             850,000        
2016 Third Amended Plan                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Increase in number of shares reserved for issuance (in shares)           2,014,400