Basic and Diluted Net Loss per Common Share, Securities Excluded from Calculation of Diluted Net Loss per Share (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Anti-dilutive Securities [Abstract]
Total potential shares of common stock excluded from computation (in shares)	27,207	5,083
Warrants [Member]
Anti-dilutive Securities [Abstract]
Total potential shares of common stock excluded from computation (in shares)	18,922	4,713
Convertible Notes Converted into Common Stock [Member]
Anti-dilutive Securities [Abstract]
Total potential shares of common stock excluded from computation (in shares)	7,877	0
Stock Options [Member]
Anti-dilutive Securities [Abstract]
Total potential shares of common stock excluded from computation (in shares)	389	359
Preferred Stock Converted into Common Stock [Member]
Anti-dilutive Securities [Abstract]
Total potential shares of common stock excluded from computation (in shares)	18	7
RSUs [Member]
Anti-dilutive Securities [Abstract]
Total potential shares of common stock excluded from computation (in shares)	1	4