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Balance Sheets (Parenthetical) - USD ($)
shares in Thousands, $ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Statement of Financial Position [Abstract]    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 20,000 20,000
Liquidation preference - Series A Convertible Preferred Stock $ 1,068 $ 1,044
Common stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Common stock, shares authorized (in shares) 150,000 150,000
Common stock, shares issued (in shares) 44,677 44,677
Common stock, shares outstanding (in shares) 44,677 44,677