Income Taxes (Reconciliation of Statutory to Effective Income Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income Taxes
U.S. federal statutory income tax rate	21.00%	21.00%
Adjustments for tax effects of:
State income taxes, net of federal tax	9.60%	2.90%
Stock-based compensation	(3.70%)	(1.60%)
Non-deductible debt items	25.30%	(7.80%)
Change in valuation allowance	(49.70%)	(9.30%)
Change in rate	0.50%	(3.30%)
Return to provision	(1.60%)	(0.70%)
Permanent differences and other	(1.40%)	(1.20%)
Effective income tax rate	0.00%	0.00%