Stock-based Compensation - Stock Options (Details) - $ / shares	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Stock Options, Additional Disclosures
Outstanding, Number, Beginning Balance (in shares)	4,700
Outstanding, Number, Ending Balance (in shares)	4,700		4,700
Options Exercisable, Number, Beginning	4,577
Options Exercisable, Number, Ending	4,607		4,577
Outstanding, Weighted Average Exercise Price, Beginning Balance (in dollars per share)	$ 398.30
Outstanding, Weighted Average Exercise Price, Ending Balance (in dollars per share)	398.30		$ 398.30
Options Exercisable, Exercise price, beginning (in dollars per share)	391.04
Options Exercisable, Exercise price, ending (in dollars per share)	$ 392.96		$ 391.04
Options, Outstanding, Remaining Contractual Term	8 years 3 months 18 days		8 years 7 months 6 days
Options Exercisable, Remaining Contractual Term	8 years 3 months 18 days		8 years 7 months 6 days
Weighted average fair value per share of options granted		$ 3.63