Annual report pursuant to Section 13 and 15(d)

Income taxes - Reconciliation of Federal Statutory Income Tax Provision to Company's Actual Provision (Details)

v3.22.0.1
Income taxes - Reconciliation of Federal Statutory Income Tax Provision to Company's Actual Provision (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Line Items]    
Federal statutory income tax rate (percent) 21.00%  
Pre-tax book income   $ (6,187,020)
Income tax provision $ 19,491 30,171
Income Tax Provision    
Income Tax Disclosure [Line Items]    
Pre-tax book income 3,760,508 (6,187,020)
Expected tax at 21% 789,707 (1,299,274)
Mark to market 6,605 20,665
Goodwill impairment 0 613,677
Intangible amortization (67,008) (84,085)
Paycheck Protection Program loan forgiveness (792,333) 0
Other 3,873 2,757
Current 19,491 30,171
Deferred (6,121) (161,203)
Federal research and development credits 0 (13,161)
Change in valuation allowance 84,000 1,049,000
Deferred tax past year true-up's (15,228) 11,767
Other (3,495) (140,143)
Income tax provision $ 19,491 $ 30,171