Quarterly report [Sections 13 or 15(d)]

Stockholders' Deficit - Additional Information (Details)

v3.26.1
Stockholders' Deficit - Additional Information (Details) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Jan. 27, 2023
Jan. 12, 2023
Mar. 31, 2026
Sep. 30, 2025
Mar. 31, 2025
Sep. 30, 2024
Dec. 31, 2025
Dec. 31, 2024
Sep. 29, 2021
Dec. 31, 2018
Class Of Warrant Or Right [Line Items]                    
Weighted average remaining contractual life (years), outstanding     1 year 9 months 18 days              
Share-based compensation     $ 1,000   $ 10,000          
Professional Relations and Consulting Service [Member]                    
Class Of Warrant Or Right [Line Items]                    
Warrants granted, term 5 years 5 years                
Change in fair value of derivative liabilities     $ 2,000   $ 9,000          
Warrant excercise price $ 0.47 $ 0.5                
Maximum [Member] | Professional Relations and Consulting Service [Member]                    
Class Of Warrant Or Right [Line Items]                    
Warrants granted to purchase common stock 500,000 250,000                
2011 Stock Incentive Option Plan [Member] | Stock Options [Member]                    
Class Of Warrant Or Right [Line Items]                    
Vesting period     3 years              
Exercisable/expiration period     10 years              
Expiration date     2021-05              
Stock option awards outstanding     1,195,760       1,300,774      
Number of shares authorized under the plan                   9,000,000
2021 Stock Incentive Option Plan [Member]                    
Class Of Warrant Or Right [Line Items]                    
Exercisable/expiration period     10 years              
Stock option awards outstanding     3,120,000              
2021 Stock Incentive Option Plan [Member] | Stock Options [Member]                    
Class Of Warrant Or Right [Line Items]                    
Number of shares authorized under the plan                 4,000,000  
2012 Omnibus Incentive Compensation Plan [Member]                    
Class Of Warrant Or Right [Line Items]                    
Stock option awards outstanding     243,824       243,968      
2011 and 2021 Stock Incentive Option Plan [Member]                    
Class Of Warrant Or Right [Line Items]                    
Unrecognized share-based compensation expense     $ 0              
Options granted     0       50,000      
Stock option awards outstanding     4,559,584       4,664,742 5,287,284    
2011 and 2021 Stock Incentive Option Plan [Member] | Stock Options [Member]                    
Class Of Warrant Or Right [Line Items]                    
Share-based compensation     $ 1,000 $ 10,000            
Employees [Member] | 2021 Stock Incentive Option Plan [Member]                    
Class Of Warrant Or Right [Line Items]                    
Vesting period           3 years        
Non-Employee Director [Member] | 2021 Stock Incentive Option Plan [Member]                    
Class Of Warrant Or Right [Line Items]                    
Vesting period           1 year