Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation and Warrants - Narrative (Details)

v3.21.1
Stock-Based Compensation and Warrants - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Apr. 30, 2021
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation   $ 1,022,000 $ 338,000  
Options outstanding (in shares)   2,286,410   2,286,410
Warrants available   225,000   865,000
Warrants minimum exercise price       $ 1.63
Warrants maximum exercise price       $ 2.61
Anson Investments Master Fund LP        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise of warrants (in shares)   450,971    
Warrants exercised   640,000    
Ontario Limited        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise of warrants (in shares) 100,000      
Aggregate consideration, warrant exercise $ 261,000      
Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Fair value of options vested   $ 100,000    
General and Administrative Expense.        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation   1,000,000 300,000  
Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation cost related to non-vested awards   $ 100,000    
Unrecognized compensation cost, recognition period   1 year 4 months 24 days    
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation cost related to non-vested awards   $ 3,200,000    
Unrecognized compensation cost, recognition period   2 years 4 months 24 days    
Milestone-Based Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation   $ 300,000    
Equity Incentive Plan 2019        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Remaining shares available for issuance   704,668    
Director | Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation   $ 100,000 $ 100,000