Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY

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CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Preferred Stock
Convertible Preferred Stock
Common Shares
Additional Paid-in Capital
Accumulated Deficit
Cumulative Effect, Period of Adoption, Adjustment [Member]
Accumulated Deficit
Cumulative Effect, Period of Adoption, Adjustment [Member]
Total
Balance at Dec. 31, 2020 $ 597 $ 1 $ 207,698   $ (200,383)   $ 7,316
Balance (in shares) at Dec. 31, 2020 250,000 8,402,250          
Issuance of common stock upon warrant exercise     5,095       5,095
Issuance of common stock upon warrant exercise (in shares)   2,086,251          
Warrants issued in connection with warrant exercise     567       567
Convertible preferred stock dividend $ 20   (20)       (20)
Stock-based compensation     254       254
Stock-based compensation (in shares)   643,700          
Release of vested restricted common stock (in shares)   352          
Net loss         (3,292)   (3,292)
Balance (in shares) at Mar. 31, 2021 250,000 11,132,553          
Balance at Mar. 31, 2021 $ 617 $ 1 213,594   (203,675)   9,920
Balance at Dec. 31, 2020 $ 597 $ 1 207,698   (200,383)   7,316
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)
Net loss             (6,690)
Balance (in shares) at Jun. 30, 2021   12,762,797          
Balance at Jun. 30, 2021   $ 1 218,705   (207,073)   11,633
Balance at Dec. 31, 2020 $ 597 $ 1 207,698   (200,383)   7,316
Balance (in shares) at Dec. 31, 2020 250,000 8,402,250          
Balance (in shares) at Dec. 31, 2021   15,819,059          
Balance at Dec. 31, 2021   $ 2 228,578   (212,203)   16,377 [1]
Balance at Mar. 31, 2021 $ 617 $ 1 213,594   (203,675)   9,920
Balance (in shares) at Mar. 31, 2021 250,000 11,132,553          
Issuance of common stock upon warrant exercise     3,159       3,159
Issuance of common stock upon warrant exercise (in shares)   1,360,244          
Warrants issued in connection with warrant exercise     579       579
Convertible preferred stock dividend $ 14   (14)       (14)
Exchange of convertible preferred stock for common stock $ (631)   1,640       1,640
Exchange of convertible preferred stock for common stock (in shares) (250,000) 250,000          
Warrants issued upon exchange of convertible preferred stock for common stock     570       570
Deemed dividend on exchange of convertible preferred stock for common stock     (1,192)       (1,192)
Stock-based compensation     335       335
Stock-based compensation (in shares)   10,000          
Net loss         (3,398)   (3,398)
Issuance of warrants for common stock for services (in shares)   10,000          
Issuance of common stock for services     34       34
Balance (in shares) at Jun. 30, 2021   12,762,797          
Balance at Jun. 30, 2021   $ 1 218,705   (207,073)   11,633
Balance at Dec. 31, 2021   $ 2 228,578   (212,203)   16,377 [1]
Balance (in shares) at Dec. 31, 2021   15,819,059          
Stock-based compensation     480       480
Stock-based compensation (in shares)   1,067,400          
Restricted stock awards cancelled (in shares)   (8,663)          
Release of vested restricted common stock (in shares) 0 5,668          
Net loss         (3,904)   (3,904)
Balance (in shares) at Mar. 31, 2022   16,883,464          
Balance at Mar. 31, 2022   $ 2 229,058 $ 33 (216,074) $ 33 12,986
Balance at Dec. 31, 2021   $ 2 228,578   (212,203)   16,377 [1]
Balance (in shares) at Dec. 31, 2021   15,819,059          
Deemed dividend on exchange of convertible preferred stock for common stock             0
Net loss             (8,012)
Balance (in shares) at Jun. 30, 2022   16,899,822          
Balance at Jun. 30, 2022   $ 2 229,564   (220,182)   9,384
Balance at Mar. 31, 2022   $ 2 229,058 $ 33 (216,074) $ 33 12,986
Balance (in shares) at Mar. 31, 2022   16,883,464          
Deemed dividend on exchange of convertible preferred stock for common stock             0
Stock-based compensation     506       506
Stock-based compensation (in shares)   30,000          
Restricted stock awards cancelled (in shares)   (14,809)          
Release of vested restricted common stock (in shares)   1,167          
Net loss         (4,108)   (4,108)
Balance (in shares) at Jun. 30, 2022   16,899,822          
Balance at Jun. 30, 2022   $ 2 $ 229,564   $ (220,182)   $ 9,384
[1] The condensed consolidated balance sheet as of December 31, 2021 was derived from the audited consolidated balance sheet as of that date.