Quarterly report pursuant to Section 13 or 15(d)

Schedule of repurchase of common stock (Details)

v3.23.3
Schedule of repurchase of common stock (Details) - $ / shares
 3 Months Ended 9 Months Ended 12 Months Ended
Aug. 08, 2014
Sep. 30, 2023
Sep. 30, 2023
Dec. 31, 2022
Equity, Class of Treasury Stock [Line Items]        
Total number of shares purchased 300,000 300,000 255,252 44,748
Total number of shares purchased as part of publicly announced plans or programs   300,000 300,000  
Maximum number of shares that may yet be purchased under the plans or programs   0 0  
Average price paid per share   $ 0.029    
April 1 through April 30, 2023 [Member]        
Equity, Class of Treasury Stock [Line Items]        
Total number of shares purchased   0    
Total number of shares purchased as part of publicly announced plans or programs   44,748 44,748  
Maximum number of shares that may yet be purchased under the plans or programs   255,252 255,252  
May 1 through May 31, 2023 [Member]        
Equity, Class of Treasury Stock [Line Items]        
Total number of shares purchased   0    
Total number of shares purchased as part of publicly announced plans or programs   44,748 44,748  
Maximum number of shares that may yet be purchased under the plans or programs   255,252 255,252  
June 1 through June 30, 2023 [Member]        
Equity, Class of Treasury Stock [Line Items]        
Total number of shares purchased   22,400    
Total number of shares purchased as part of publicly announced plans or programs   67,148 67,148  
Maximum number of shares that may yet be purchased under the plans or programs   232,852 232,852  
Average price paid per share   $ 0.027    
July 1 through July 31, 2023 [Member]        
Equity, Class of Treasury Stock [Line Items]        
Total number of shares purchased   232,852    
Total number of shares purchased as part of publicly announced plans or programs   300,000 300,000  
Maximum number of shares that may yet be purchased under the plans or programs   0 0  
Average price paid per share   $ 0.029    
August 1 through August 31, 2023 [Member]        
Equity, Class of Treasury Stock [Line Items]        
Total number of shares purchased   0    
Total number of shares purchased as part of publicly announced plans or programs   0 0  
Maximum number of shares that may yet be purchased under the plans or programs   0 0  
Average price paid per share   $ 0    
September 1 through September 30, 2023 [Member]        
Equity, Class of Treasury Stock [Line Items]        
Total number of shares purchased   0    
Total number of shares purchased as part of publicly announced plans or programs   0 0  
Maximum number of shares that may yet be purchased under the plans or programs   0 0  
Average price paid per share   $ 0