Stockholders' Deficit (Shares Reserved for Future Issuance) (Details) - shares	Dec. 31, 2025	Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options outstanding	4,803,921	3,755,965
Shares issuable under the Employee stock purchase plan	14,032	11,890
Warrants outstanding	10,655,047	19,365,847
Shares issuable upon the conversion of the Convertible Loan	24,500,000	22,899,123
Total shares reserved	44,111,728	49,658,733
Restricted stock unit
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unvested restricted stock units	152,500	220,000
Equity Incentive Plan 2016
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares available for future grants under the 2016 Plan	3,986,228	3,405,908