Stock-based compensation (Schedule of assumptions used to estimate the fair value of options) (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected dividend yield	0.00%	0.00%
Risk-free interest rate		4.24%
Expected term (in years)	5 years	5 years
Expected volatility		93.10%
Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Risk-free interest rate	2.95%
Expected volatility	95.00%
Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Risk-free interest rate	4.24%
Expected volatility	100.00%