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 ($)
Common Shares
Shelf Offering
Common Shares
Additional Paid-in Capital [Member]
Shelf Offering
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Loss [Member]
Accumulated Deficit [Member]
Convertible Preferred Stock [Member]
Shelf Offering
Total
Balance at Dec. 31, 2019       $ 188,320,000 $ (48,000) $ (187,678,000) $ 517,000   $ 594,000
Balance (in shares) at Dec. 31, 2019   1,245,238         250,000    
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   $ 0   189,734,000 (48,000) (190,358,000) $ 537,000   (672,000)
Balance (in shares) at Mar. 31, 2020   1,338,603         250,000    
Balance at Dec. 31, 2019       188,320,000 (48,000) (187,678,000) $ 517,000   594,000
Balance (in shares) at Dec. 31, 2019   1,245,238         250,000    
Deemed dividend on exchange of convertible preferred stock for common stock                 0
Warrant Repricing                 134,000
Net loss                 (6,078,000)
Balance at Jun. 30, 2020   $ 1,000   205,430,000   (193,756,000) $ 557,000   11,675,000
Balance (in shares) at Jun. 30, 2020   7,723,353         250,000    
Balance at Dec. 31, 2019       188,320,000 (48,000) (187,678,000) $ 517,000   594,000
Balance (in shares) at Dec. 31, 2019   1,245,238         250,000    
Balance at Dec. 31, 2020   $ 1,000   207,698,000   (200,383,000) $ 597,000   7,316,000 [1]
Balance (in shares) at Dec. 31, 2020   8,402,250         250,000    
Balance at Mar. 31, 2020   $ 0   189,734,000 (48,000) (190,358,000) $ 537,000   (672,000)
Balance (in shares) at Mar. 31, 2020   1,338,603         250,000    
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 on exchange of convertible preferred stock for common stock                 0
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   $ 1,000   205,430,000   (193,756,000) $ 557,000   11,675,000
Balance (in shares) at Jun. 30, 2020   7,723,353         250,000    
Balance at Dec. 31, 2020   $ 1,000   207,698,000   (200,383,000) $ 597,000   7,316,000 [1]
Balance (in shares) at Dec. 31, 2020   8,402,250         250,000    
Issuance of common stock upon warrant exercise       5,095,000         5,095,000
Issuance of common stock upon warrant exercise (in shares)   2,086,251         0    
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)   643,700         0    
Release of vested restricted common stock (in shares)   352              
Net loss           (3,292,000)     (3,292,000)
Balance at Mar. 31, 2021   $ 1,000   213,594,000   (203,675,000) $ 617,000   9,920,000
Balance (in shares) at Mar. 31, 2021   11,132,553         250,000    
Balance at Dec. 31, 2020   $ 1,000   207,698,000   (200,383,000) $ 597,000   7,316,000 [1]
Balance (in shares) at Dec. 31, 2020   8,402,250         250,000    
Deemed dividend on exchange of convertible preferred stock for common stock                 (1,192,000)
Warrant Repricing                 0
Net loss                 (6,690,000)
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              
Balance at Mar. 31, 2021   $ 1,000   213,594,000   (203,675,000) $ 617,000   9,920,000
Balance (in shares) at Mar. 31, 2021   11,132,553         250,000    
Issuance of common stock upon warrant exercise       3,159,000         3,159,000
Issuance of common stock upon warrant exercise (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       1,640,000     $ (631,000)    
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              
[1] The condensed consolidated balance sheet as of December 31, 2020 was derived from the audited consolidated balance sheet as of that date.