Quarterly report pursuant to Section 13 or 15(d)

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

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CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) - USD ($)
Preferred Stock
Convertible Preferred Stock
Common Shares
Shelf Offering
Common Shares
Additional Paid-in Capital
Shelf Offering
Additional Paid-in Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Shelf Offering
Total
Balance at Dec. 31, 2019 $ 517,000       $ 188,320,000 $ (48,000) $ (187,678,000)   $ 594,000
Balance (in shares) at Dec. 31, 2019 250,000   1,245,238            
Issuance of warrants in connection with convertible notes payable         630,000       630,000
Issuance of common stock and warrants, net of offering costs         725,000       725,000
Issuance of common stock and warrants, net of offering costs (in shares)     91,062            
Issuance of common stock in connection with notes payable         4,000       4,000
Issuance of common stock in connection with notes payable (in shares)     500            
Convertible preferred stock dividend $ 20,000       (20,000)       (20,000)
Stock-based compensation         75,000       75,000
Stock-based compensation (in shares)     2,000            
Restricted stock awards cancelled (in shares)     (550)            
Release of vested restricted common stock (in shares)     353            
Net loss             (2,680,000)   (2,680,000)
Balance at Mar. 31, 2020 $ 537,000   $ 0   189,734,000 (48,000) (190,358,000)   (672,000)
Balance (in shares) at Mar. 31, 2020 250,000   1,338,603            
Balance at Dec. 31, 2019 $ 517,000       188,320,000 (48,000) (187,678,000)   594,000
Balance (in shares) at Dec. 31, 2019 250,000   1,245,238            
Deemed dividend on exchange of convertible preferred stock for common stock                 0
Warrant Repricing                 134,000
Net loss                 (9,068,000)
Balance at Sep. 30, 2020 $ 577,000   $ 1,000   206,030,000   (196,746,000)   9,285,000
Balance (in shares) at Sep. 30, 2020 250,000   7,822,375            
Balance at Dec. 31, 2019 $ 517,000       188,320,000 (48,000) (187,678,000)   594,000
Balance (in shares) at Dec. 31, 2019 250,000   1,245,238            
Balance at Dec. 31, 2020 $ 597,000   $ 1,000   207,698,000   (200,383,000)   7,316,000 [1]
Balance (in shares) at Dec. 31, 2020 250,000   8,402,250            
Balance at Mar. 31, 2020 $ 537,000   $ 0   189,734,000 (48,000) (190,358,000)   (672,000)
Balance (in shares) at Mar. 31, 2020 250,000   1,338,603            
Issuance of common stock, prefunded warrants and warrants, net of public offering costs         5,515,000       5,515,000
Issuance of common stock, prefunded warrants and warrants, net of public offering costs (in shares)     1,525,000            
Proceeds from the exercise of prefunded warrants and common stock warrants         37,000       37,000
Proceeds from the exercise of prefunded warrants and common stock warrants (in shares)     485,000            
Issuance of common stock and warrants, net of offering costs   $ 1,000   $ 9,957,000       $ 9,958,000  
Issuance of common stock and warrants, net of offering costs (in shares)   4,315,000              
Issuance of common stock in connection with settlements         135,000       135,000
Issuance of common stock in connection with settlements (in shares)     60,250            
Convertible preferred stock dividend $ 20,000       (20,000)       (20,000)
Deemed dividend from warrant down-round provision         (134,000)       (134,000)
Warrant Repricing         134,000       134,000
Stock-based compensation         72,000       72,000
Stock-based compensation (in shares)     2,000            
Restricted stock awards cancelled (in shares)     (2,500)            
Gain On Foreign Currency Translation On Subsidiary           $ 48,000     48,000
Net loss             (3,398,000)   (3,398,000)
Balance at Jun. 30, 2020 $ 557,000   $ 1,000   205,430,000   (193,756,000)   11,675,000
Balance (in shares) at Jun. 30, 2020 250,000   7,723,353            
June 2020 shelf offering - issuance costs         (42,000)       (42,000)
Convertible preferred stock dividend $ 20,000       (20,000)       (20,000)
Deemed dividend on exchange of convertible preferred stock for common stock                 0
Stock-based compensation         662,000       662,000
Stock-based compensation (in shares)     98,669            
Release of vested restricted common stock (in shares)     353            
Net loss             (2,990,000)   (2,990,000)
Balance at Sep. 30, 2020 $ 577,000   $ 1,000   206,030,000   (196,746,000)   9,285,000
Balance (in shares) at Sep. 30, 2020 250,000   7,822,375            
Balance at Dec. 31, 2020 $ 597,000   $ 1,000   207,698,000   (200,383,000)   7,316,000 [1]
Balance (in shares) at Dec. 31, 2020 250,000   8,402,250            
Issuance of common stock upon warrant exercise, net of issuance costs         5,095,000       5,095,000
Issuance of common stock upon warrant exercise, net of issuance costs (in shares) 0   2,086,251            
Issuance of warrants in connection with convertible notes payable $ 0                
Warrants issued in connection with warrant exercise         567,000       567,000
Convertible preferred stock dividend $ 20,000       (20,000)       (20,000)
Stock-based compensation         254,000       254,000
Stock-based compensation (in shares) 0   643,700            
Release of vested restricted common stock (in shares)     352            
Net loss             (3,292,000)   (3,292,000)
Balance at Mar. 31, 2021 $ 617,000   $ 1,000   213,594,000   (203,675,000)   9,920,000
Balance (in shares) at Mar. 31, 2021 250,000   11,132,553            
Balance at Dec. 31, 2020 $ 597,000   $ 1,000   207,698,000   (200,383,000)   7,316,000 [1]
Balance (in shares) at Dec. 31, 2020 250,000   8,402,250            
Deemed dividend on exchange of convertible preferred stock for common stock                 (1,192,000)
Warrant Repricing                 0
Net loss                 (8,751,000)
Balance at Sep. 30, 2021     $ 2,000   228,128,000   (209,134,000)   18,996,000
Balance (in shares) at Sep. 30, 2021     15,803,940            
Balance at Mar. 31, 2021 $ 617,000   $ 1,000   213,594,000   (203,675,000)   9,920,000
Balance (in shares) at Mar. 31, 2021 250,000   11,132,553            
Issuance of common stock upon warrant exercise, net of issuance costs         3,159,000       3,159,000
Issuance of common stock upon warrant exercise, net of issuance costs (in shares)     1,360,244            
Issuance of common stock in connection with notes payable                 1,640,000
Warrants issued in connection with warrant exercise         579,000       579,000
Convertible preferred stock dividend $ 14,000       (14,000)       (14,000)
Exchange of convertible preferred stock for common stock $ (631,000)       1,640,000        
Exchange of convertible preferred stock for common stock (in shares) (250,000)   250,000            
Warrants issued upon exchange of preferred stock for common stock         570,000       570,000
Deemed dividend on exchange of convertible preferred stock for common stock         (1,192,000)       (1,192,000)
Stock-based compensation         335,000       335,000
Stock-based compensation (in shares)     10,000            
Issuance of common stock to vendor         34,000       34,000
Issuance of common stock to vendor (in shares)     10,000            
Net loss             (3,398,000)   (3,398,000)
Balance at Jun. 30, 2021     $ 1,000   218,705,000   (207,073,000)   11,633,000
Balance (in shares) at Jun. 30, 2021     12,762,797            
Issuance of common stock upon warrant exercise, net of issuance costs         49,000       49,000
Issuance of common stock upon warrant exercise, net of issuance costs (in shares)     19,000            
Registered direct offering, net of issuance costs     $ 1,000   9,025,000       9,026,000
Registered direct offering, net of issuance costs (in shares)     2,500,000            
Deemed dividend on exchange of convertible preferred stock for common stock                 0
Stock-based compensation         349,000       349,000
Stock-based compensation (in shares)     320,800            
Release of vested restricted common stock (in shares)     201,343            
Net loss             (2,061,000)   (2,061,000)
Balance at Sep. 30, 2021     $ 2,000   $ 228,128,000   $ (209,134,000)   $ 18,996,000
Balance (in shares) at Sep. 30, 2021     15,803,940            
[1] The condensed consolidated balance sheet as of December 31, 2020 was derived from the audited consolidated balance sheet as of that date.