Annual report [Section 13 and 15(d), not S-K Item 405]

Stockholders' Deficit - Summary of Stock Option Activity (Details)

v3.26.1
Stockholders' Deficit - Summary of Stock Option Activity (Details) - $ / shares
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
2021 Stock Incentive Option Plan [Member]    
Class Of Warrant Or Right [Line Items]    
Number of Options outstanding, beginning 3,580,833  
Number of Options outstanding, end 3,120,000 3,580,833
2011 and 2021 Stock Incentive Option Plan [Member]    
Class Of Warrant Or Right [Line Items]    
Number of Options outstanding, beginning 5,287,284 3,223,881
Number of Options, Granted or deemed issued 50,000 2,360,000
Number of Options, Cancelled, forfeited and expired (672,542) (296,597)
Number of Options outstanding, end 4,664,742 5,287,284
Number of Options, Options exercisable 4,646,686 4,819,920
Number of Options, Options available for future grant 880,000 419,167
Weighted-Average Exercise Price, Options outstanding, beginning $ 3.54 $ 5.97
Weighted-Average Exercise Price, Granted or deemed issued 0.01 0.15
Weighted-Average Exercise Price, Cancelled, forfeited and expired 2.88 0.34
Weighted-Average Exercise Price, Options outstanding, end 3.6 3.54
Weighted-Average Exercise Price, Options exercisable $ 3.6 $ 3.59