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
Additional Paid-In Capital
Accumulated Deficit
Total
Balance at Dec. 31, 2020 $ 7 $ 370,804 $ (367,279) $ 3,532
Balance (in shares) at Dec. 31, 2020 7,139      
Net loss $ 0 0 (2,641) (2,641)
Issuance of common stock, net $ 3 8,838 0 8,841
Issuance of common stock, net (in shares) 2,725      
Stock-based compensation $ 0 248 0 248
Balance at Mar. 31, 2021 $ 10 379,890 (369,920) 9,980
Balance (in shares) at Mar. 31, 2021 9,864      
Balance at Dec. 31, 2021 $ 10 381,183 (376,055) 5,138
Balance (in shares) at Dec. 31, 2021 9,914      
Net loss $ 0 0 (2,540) (2,540)
Issuance of common stock, net $ 1 5,029 0 5,030
Issuance of common stock, net (in shares) 1,151      
Issuance of common stock upon exercises of warrants $ 1 0 0 1
Issuance of common stock upon exercises of warrants (in shares) 974      
Amortization of restricted stock   27   27
Stock-based compensation $ 0 226 0 226
Balance at Mar. 31, 2022 $ 12 $ 386,465 $ (378,595) $ 7,882
Balance (in shares) at Mar. 31, 2022 12,039