XML 15 R5.htm IDEA: XBRL DOCUMENT v3.22.2
Condensed Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Lincoln Park Capital Fund, LLC [Member]
At-the-Market Sales Agreement [Member]
Private Placement [Member]
Common Stock [Member]
Common Stock [Member]
Lincoln Park Capital Fund, LLC [Member]
Common Stock [Member]
At-the-Market Sales Agreement [Member]
Common Stock [Member]
Private Placement [Member]
Additional Paid-in Capital [Member]
Additional Paid-in Capital [Member]
Lincoln Park Capital Fund, LLC [Member]
Additional Paid-in Capital [Member]
At-the-Market Sales Agreement [Member]
Additional Paid-in Capital [Member]
Private Placement [Member]
Accumulated Other Comprehensive Loss [Member]
Accumulated Deficit [Member]
Beginning Balance at Dec. 31, 2020 $ 27,282       $ 19       $ 174,240         $ (146,977)
Beginning Balance (in shares) at Dec. 31, 2020         18,546,786                  
Stock-based compensation 1,463               1,463          
Issuance of common stock, net of commissions and allocated fees, less issuance costs     $ 6,764       $ 2       $ 6,762      
Issuance of common stock, net of commissions and allocated fees, less issuance costs (in shares)             2,733,492              
Issuance of common stock from Employee Stock Purchase Plan 17               17          
Issuance of common stock from employee stock purchase plan (in shares)         9,132                  
Issuance of common stock to Lincoln Park Capital Fund   $ 375               $ 375        
Issuance of common stock to Lincoln Park Capital Fund (in shares)           170,088                
Net loss (18,165)                         (18,165)
Ending Balance at Jun. 30, 2021 17,736       $ 21       182,857         (165,142)
Ending Balance (in shares) at Jun. 30, 2021         21,459,498                  
Beginning Balance at Mar. 31, 2021 23,685       $ 20       179,013         (155,348)
Beginning Balance (in shares) at Mar. 31, 2021         19,914,407                  
Stock-based compensation 745               745          
Issuance of common stock, net of commissions and allocated fees, less issuance costs     2,708       $ 1       2,707      
Issuance of common stock, net of commissions and allocated fees, less issuance costs (in shares)             1,365,871              
Issuance of common stock from Employee Stock Purchase Plan 17               17          
Issuance of common stock from employee stock purchase plan (in shares)         9,132                  
Issuance of common stock to Lincoln Park Capital Fund   $ 375               $ 375        
Issuance of common stock to Lincoln Park Capital Fund (in shares)           170,088                
Net loss (9,794)                         (9,794)
Ending Balance at Jun. 30, 2021 17,736       $ 21       182,857         (165,142)
Ending Balance (in shares) at Jun. 30, 2021         21,459,498                  
Beginning Balance at Dec. 31, 2021 17,075       $ 29       197,963         (180,917)
Beginning Balance (in shares) at Dec. 31, 2021         28,505,804                  
Stock-based compensation 1,257               1,257          
Issuance of common stock, net of commissions and allocated fees, less issuance costs     (42) $ 51,826       $ 5     (42) $ 51,821    
Issuance of common stock, net of commissions and allocated fees, less issuance costs (in shares)               4,580,526            
Issuance of common stock from Employee Stock Purchase Plan 23               23          
Issuance of common stock from employee stock purchase plan (in shares)         33,972                  
Issuance of common stock from warrant exercise 5,892       $ 6       5,886          
Issuance of common stock from warrant exercise (in shares)         6,599,270                  
Unrealized losses on available-for-sale marketable securities (135)                       $ (135)  
Net loss (15,381)                         (15,381)
Ending Balance at Jun. 30, 2022 60,515       $ 40       256,908       (135) (196,298)
Ending Balance (in shares) at Jun. 30, 2022         39,719,572                  
Beginning Balance at Mar. 31, 2022 10,463       $ 31       198,678         (188,246)
Beginning Balance (in shares) at Mar. 31, 2022         30,805,804                  
Stock-based compensation 520               520          
Issuance of common stock, net of commissions and allocated fees, less issuance costs     $ (20) $ 51,826       $ 5     $ (20) $ 51,821    
Issuance of common stock, net of commissions and allocated fees, less issuance costs (in shares)               4,580,526            
Issuance of common stock from Employee Stock Purchase Plan 23               23          
Issuance of common stock from employee stock purchase plan (in shares)         33,972                  
Issuance of common stock from warrant exercise 5,890       $ 4       5,886          
Issuance of common stock from warrant exercise (in shares)         4,299,270                  
Unrealized losses on available-for-sale marketable securities (135)                       (135)  
Net loss (8,052)                         (8,052)
Ending Balance at Jun. 30, 2022 $ 60,515       $ 40       $ 256,908       $ (135) $ (196,298)
Ending Balance (in shares) at Jun. 30, 2022         39,719,572