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CONDENSED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Statement of Financial Position [Abstract]    
Preferred stock, shares authorized (in shares) 20,000,000 20,000,000
Liquidation preference $ 1,056 $ 1,044
Common stock, par value (in USD per share) $ 0.0001 $ 0.0001
Common stock, shares authorized (in shares) 150,000,000 150,000,000
Common stock, shares issued (in shares) 44,677,000 44,677,000
Common stock, shares outstanding (in shares) 44,677,000 44,677,000