Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT)

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CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) - USD ($)
$ in Thousands
Common Shares [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Loss [Member]
Accumulated Deficit [Member]
Convertible Preferred Stock [Member]
Total
Balance at Dec. 31, 2017 $ 0 $ 13,832 $ (42) $ (108,283) $ 64,735 $ (94,493)
Balance (in shares) at Dec. 31, 2017 324,821       2,762,594  
Issuance of common stock to note holder upon extension of maturity date $ 0          
Issuance of common stock to note holder upon extension of maturity date (in shares) 327          
Beneficial conversion feature upon conversion of convertible notes payable $ 0 43,012 0 0 $ 0 43,012
Issuance of warrants 0 3,638 0 0   3,638
Reclassification of warrants 0 9,310 0 0   9,310
Proceeds from issuance of common stock, net $ 0 10,272 0 0   10,272
Proceeds from issuance of common stock, net (in shares) 2,400,000          
Conversion of preferred stock to common stock $ 0 64,735 0 0 $ (64,735) 64,735
Conversion of preferred stock to common stock (in shares) 2,762,594       (2,762,594)  
Issuance of common stock upon conversion of convertible notes payable $ 2 30,449       30,451
Issuance of common stock upon conversion of convertible notes payable (in shares) 9,527,144          
Beneficial conversion feature upon issuance of convertible notes payable $ 0 1,918 0 0   1,918
Release of vested restricted common stock $ 0 (499) 0 0 $ 0 (499)
Release of vested restricted common stock (in shares) 257,281          
Issuance of common stock for services $ 0 438 0 0   438
Issuance of common stock for services (in shares) 94,160          
Stock-based compensation expense $ 0 2,156       2,156
Currency translation adjustment 0   (3) 0 0 (3)
Issuance of warrants for vendor services 0 240       240
Net loss 0   0 (67,357) 0 (67,357)
Balance at Dec. 31, 2018 $ 2 179,501 (45) (175,640) 0 3,818
Balance (in shares) at Dec. 31, 2018 15,366,327          
Proceeds from issuance of common stock, net $ 0 6,149       6,149
Proceeds from issuance of common stock, net (in shares) 6,575,726          
Beneficial conversion feature upon issuance of convertible notes payable       0    
Release of vested restricted common stock $ 0 (87) 0 0 0 (87)
Release of vested restricted common stock (in shares) 534,127          
Issuance of common stock for services $ 0 246       246
Issuance of common stock for services (in shares) 172,780          
Issuance of warrants for common stock $ 0 46 0   0 46
Issuance of convertible preferred stock and common stock warrant, net of issuance costs 0 200 0 0 $ 720 200
Issuance of convertible preferred stock and common stock warrant, net of issuance costs (in shares)         250,000  
Fair value of derivative liability in connection with issuance of convertible preferred stock 0   0 0 $ (216)  
Issuance of warrants for common stock, in connection with convertible preferred stock offering 0 43 0 0 (43) 43
Convertible preferred stock dividend 0 56 0 0 (56) 56
Proceeds from issuance of pre-funded warrants and exercise of common stock warrants $ 0 1,167       1,167
Proceeds from issuance of pre-funded warrants and exercise of common stock warrants (in shares) 1,128,381          
Issuance of common stock for warrant settlement $ 0 112 0 0 0 112
Issuance of common stock for warrant settlement (in shares) 152,944          
Stock-based compensation expense $ 0 105 0 0 0 105
Stock compensation expense (in shares) 942,906          
Change in fair value of common stock warrants upon repricing $ 0 892 0 0 0 892
Currency translation adjustment 0 0 (3) 0 0 (3)
Net loss 0 0 0 (12,038) 0 (12,038)
Balance at Dec. 31, 2019 $ 2 $ 188,318 $ (48) $ (187,678) $ 517 $ 594
Balance (in shares) at Dec. 31, 2019 24,873,191       250,000