Annual report pursuant to Section 13 and 15(d)

STATEMENTS OF STOCKHOLDERS' EQUITY

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STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Beginning balance, value at Dec. 31, 2020 $ 7 $ 370,804 $ (367,279) $ 3,532
Beginning Balance, shares at Dec. 31, 2020 7,139      
Net loss (8,776) (8,776)
Issuance of common stock, net $ 3 8,838 8,841
Issuance of common stock, net, shares   2,775      
Amortization of restricted stock 36 36
Amortization of restricted stock, shares        
Stock-based compensation 1,505 1,505
Ending balance, value at Dec. 31, 2021 $ 10 381,183 (376,055) 5,138
Ending Balance, shares at Dec. 31, 2021 9,914      
Net loss (10,206) (10,206)
Issuance of common stock, net $ 1 5,029 5,030
Issuance of common stock, net, shares   1,151      
Issuance of common stock upon exercise of warrants $ 4 4
Issuance of common stock upon exercises of warrants, shares   3,564      
Amortization of restricted stock 450 450
Amortization of restricted stock, shares   387      
Stock-based compensation 947 947
Ending balance, value at Dec. 31, 2022 $ 15 $ 387,609 $ (386,261) $ 1,363
Ending Balance, shares at Dec. 31, 2022 15,016