Annual report pursuant to Section 13 and 15(d)

Income taxes (Details) - Schedule of differences between U.S. statutory rate and Company's effective tax rate

v3.22.1
Income taxes (Details) - Schedule of differences between U.S. statutory rate and Company's effective tax rate
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Schedule of differences between U.S. statutory rate and Company's effective tax rate [Abstract]    
U.S. federal rate 21.00% 21.00%
U.S. state rate 6.70% 6.80%
Non-US rate differential 0.30% 0.20%
Prior year true-up 4.90% 0.00%
U.S. valuation allowance (32.90%) (28.00%)
Total provision for income taxes 0.00% 0.00%