Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Stockholder's Equity (Unaudited)

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Consolidated Statements of Stockholder's Equity (Unaudited) - USD ($)
Total
November 2022 Private Placement [Member]
Common stock [Member]
Additional paid-in capital [Member]
Additional paid-in capital [Member]
November 2022 Private Placement [Member]
Accumulated other comprehensive income (loss) [Member]
Accumulated deficit [Member]
Beginning Balance at Dec. 31, 2021 $ 28,042,000   $ 79,000 $ 121,545,000   $ 4,000 $ (93,586,000)
Beginning Balance, Shares at Dec. 31, 2021     9,453,542        
Stock-based compensation expense 823,000     823,000      
Shares issued on exercise of warrants 24,000     24,000      
Shares issued on exercise of warrants, Shares     3,709        
Shares issued from purchase agreement with Virtu 91,000     91,000      
Shares issued from purchase agreement with Virtu, Shares     12,742        
Shares issued 26,000     26,000      
Shares issued, Shares     3,584        
Net loss (7,573,000)           (7,573,000)
Ending Balance at Mar. 31, 2022 21,433,000   $ 79,000 122,509,000   4,000 (101,159,000)
Ending Balance, Shares at Mar. 31, 2022     9,473,577        
Beginning Balance at Dec. 31, 2022 8,303,000   $ 87,000 144,148,000   4,000 (135,936,000)
Beginning Balance, Shares at Dec. 31, 2022     17,897,029        
Stock-based compensation expense 1,085,000     1,085,000      
Shares issued on exercise of warrants 77,000     77,000      
Shares issued on exercise of warrants, Shares     33,333        
Financing costs   $ (30)     $ (30)    
Net loss (8,992,000)           (8,992,000)
Ending Balance at Mar. 31, 2023 $ 443,000   $ 87,000 $ 145,280,000   $ 4,000 $ (144,928,000)
Ending Balance, Shares at Mar. 31, 2023     17,930,362