Net Loss Per Share (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Net Loss Per Share
Preferred stock, shares issued (in shares)	883,000	883,000
Preferred stock, shares outstanding (in shares)	883,000	883,000
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, value	$ 3,532,000	$ 3,532,000
Cumulative annual dividend rate (as a percent)	5.00%	5.00%
Liquidation preference over common stock (in dollars per share)	$ 4	$ 4