Quarterly report pursuant to Section 13 or 15(d)

CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY

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CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
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 (2,641) (2,641)
Issuance of common stock, net $ 3 8,838 8,841
Issuance of common stock, net (in shares) 2,725      
Stock-based compensation 248 248
Ending balance, value at Mar. 31, 2021 $ 10 379,890 (369,920) 9,980
Ending Balance, shares at Mar. 31, 2021 9,864      
Net loss (1,680) (1,680)
Stock-based compensation 447 447
Ending balance, value at Jun. 30, 2021 $ 10 380,337 (371,600) 8,747
Ending Balance, shares at Jun. 30, 2021 9,864      
Net loss (1,915) (1,915)
Stock-based compensation 664 664
Ending balance, value at Sep. 30, 2021 $ 10 381,001 (373,515) 7,496
Ending Balance, shares at Sep. 30, 2021 9,864      
Beginning balance, value at Dec. 31, 2021 $ 10 381,183 (376,055) 5,138
Beginning Balance, shares at Dec. 31, 2021 9,914      
Net loss (2,540) (2,540)
Issuance of common stock, net $ 1 5,029 5,030
Issuance of common stock, net (in shares) 1,151      
Issuance of common stock upon exercises of warrants $ 1 1
Issuance of common stock upon exercises of warrants, shares 974      
Amortization of restricted stock 27 27
Stock-based compensation 226 226
Ending balance, value at Mar. 31, 2022 $ 12 386,465 (378,595) 7,882
Ending Balance, shares at Mar. 31, 2022 12,039      
Net loss (2,462) (2,462)
Issuance of common stock upon exercises of warrants $ 3 3
Issuance of common stock upon exercises of warrants, shares 2,590      
Amortization of restricted stock 27 27
Stock-based compensation 217 217
Ending balance, value at Jun. 30, 2022 $ 15 386,709 (381,057) 5,667
Ending Balance, shares at Jun. 30, 2022 14,629      
Net loss (2,638) (2,638)
Amortization of restricted stock 18 18
Stock-based compensation 503 503
Ending balance, value at Sep. 30, 2022 $ 15 $ 387,230 $ (383,695) $ 3,550
Ending Balance, shares at Sep. 30, 2022 14,629