Annual report pursuant to Section 13 and 15(d)

Income taxes (Details) - Schedule of deferred income tax assets

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Income taxes (Details) - Schedule of deferred income tax assets - USD ($)
Dec. 31, 2021
Dec. 31, 2020
Deferred tax assets    
Stock-based compensation $ 3,696,463 $ 3,667,375
Disallowed business interest deduction 103,567 33,384
Accrued directors’ compensation 80,816
Lease liability 23,156 40,291
Net operating loss carryforward 11,441,503 9,079,127
Total deferred tax assets, gross 15,345,505 12,820,177
Valuation allowance (15,224,188) (12,649,005)
Total deferred tax assets, net 121,317 171,172
Deferred tax liabilities    
Fixed assets and intangible assets book/tax basis difference (101,534) (132,568)
Right-of-use assets (19,783) (38,604)
Total deferred tax liabilities (121,317) (171,172)
Net deferred tax assets