Income Taxes (Reconciliation of Statutory to Effective Income Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Taxes
U.S. federal statutory income tax rate	21.00%	21.00%
State income taxes, net of federal tax	2.90%	7.30%
Stock-based compensation	(1.60%)	(0.20%)
Change in valuation allowance	(9.30%)	(28.60%)
Debt extinguishment	(1.20%)	0.00%
Change in rate	(3.30%)	0.00%
Fair value adjustment on convertible debt	(6.60%)	0.00%
Other	(1.90%)	0.50%
Effect of change in federal tax rate	(3.30%)	0.00%
Effective income tax rate	0.00%	0.00%