Annual report pursuant to Section 13 and 15(d)

Income taxes (Details Narrative)

v3.24.1.u1
Income taxes (Details Narrative) - USD ($)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]      
Income tax benefit (expense) $ 2,000 $ (18,000)  
Effective tax rate 0.00%    
Federal statutory rate 21.00% 21.00%  
Valuation allowance $ (29,509,000) $ (24,479,000) $ (19,095,000)
Accrued interest and penalties 0 0  
Domestic Tax Authority [Member]      
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]      
Net operating loss carryforwards 89,700,000 59,300,000  
Maximum [Member]      
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]      
Income tax benefit (expense) $ 100,000 $ 100,000