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Condensed Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Common Stock
Employees
Common Stock
Contractors or Consultants
Common Stock
Additional Paid-in Capital
Employees
Additional Paid-in Capital
Contractors or Consultants
Additional Paid-in Capital
Accumulated Deficit
Employees
Accumulated Deficit
Contractors or Consultants
Accumulated Deficit
Accumulated Other Comprehensive Income
Employees
Accumulated Other Comprehensive Income
Contractors or Consultants
Accumulated Other Comprehensive Income
Employees
Contractors or Consultants
Total
Balance at Dec. 31, 2019     $ 106,392     $ 48,271     $ (144,031)     $ 1,243     $ 11,875
Balance (in shares) at Dec. 31, 2019     19,896                        
Stock options issued $ 0 $ 0   $ 391 $ 21   $ 0 $ 0   $ 0 $ 0   $ 391 $ 21  
Net loss                 (3,826)           (3,826)
Balance at Mar. 31, 2020     $ 106,392     48,683     (147,857)     1,243     8,461
Balance (in shares) at Mar. 31, 2020     19,896                        
Balance at Dec. 31, 2019     $ 106,392     48,271     (144,031)     1,243     11,875
Balance (in shares) at Dec. 31, 2019     19,896                        
Net loss                             (14,871)
Balance at Sep. 30, 2020     $ 139,732     49,112     (158,902)     1,243     31,185
Balance (in shares) at Sep. 30, 2020     25,810                        
Balance at Mar. 31, 2020     $ 106,392     48,683     (147,857)     1,243     8,461
Balance (in shares) at Mar. 31, 2020     19,896                        
Stock options issued       21 522               21 522  
Issuance of securities     $ 31,967                       31,967
Issuance of securities (in shares)     5,460                        
Net loss                 (4,845)           (4,845)
Balance at Jun. 30, 2020     $ 138,359     49,226     (152,702)     1,243     36,126
Balance (in shares) at Jun. 30, 2020     25,356                        
Stock options issued 0 0   1,238 21   0 0   0 0   1,238 21  
Issuance of securities     $ 1,373     (1,373)                  
Issuance of securities (in shares)     454                        
Net loss                 (6,200)           (6,200)
Balance at Sep. 30, 2020     $ 139,732     49,112     (158,902)     1,243     31,185
Balance (in shares) at Sep. 30, 2020     25,810                        
Balance at Dec. 31, 2020     $ 140,733     49,234     (162,140)     1,243     29,070
Balance (in shares) at Dec. 31, 2020     26,003                        
Stock options issued 0 $ 0   587 $ 9   0 $ 0   0 $ 0   587 $ 9  
Net loss                 (4,733)           (4,733)
Balance at Mar. 31, 2021     $ 140,733     49,830     (166,873)     1,243     24,933
Balance (in shares) at Mar. 31, 2021     26,003                        
Balance at Dec. 31, 2020     $ 140,733     49,234     (162,140)     1,243     29,070
Balance (in shares) at Dec. 31, 2020     26,003                        
Net loss                             (12,919)
Balance at Sep. 30, 2021     $ 140,780     52,049     (175,059)     1,243     19,013
Balance (in shares) at Sep. 30, 2021     26,007                        
Balance at Mar. 31, 2021     $ 140,733     49,830     (166,873)     1,243     24,933
Balance (in shares) at Mar. 31, 2021     26,003                        
Stock options issued       1,326                 1,326    
Exercise of options     $ 47     (24)                 23
Exercise of options (in shares)     4                        
Net loss                 (4,001)           (4,001)
Balance at Jun. 30, 2021     $ 140,780     51,132     (170,874)     1,243     22,281
Balance (in shares) at Jun. 30, 2021     26,007                        
Stock options issued $ 0     $ 917     $ 0     $ 0     $ 917    
Net loss                 (4,185)           (4,185)
Balance at Sep. 30, 2021     $ 140,780     $ 52,049     $ (175,059)     $ 1,243     $ 19,013
Balance (in shares) at Sep. 30, 2021     26,007