Annual report pursuant to Section 13 and 15(d)

Intangible assets and liabilities other than goodwill - Narrative (Details)

v3.22.0.1
Intangible assets and liabilities other than goodwill - Narrative (Details) - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Acquired Finite-Lived Intangible Assets [Line Items]    
Amortization expense $ 197,788 $ 113,723
Net credit to cost of sales related to the amortization of contract related assets and liabilities 319,084 400,404
Long-lived asset impairment 205,345  
Reversal of unfavorable contract liability (7,400) (251,906)
Long-lived Asset Impairment    
Acquired Finite-Lived Intangible Assets [Line Items]    
Reversal of unfavorable contract liability 478,411  
Product Certifications    
Acquired Finite-Lived Intangible Assets [Line Items]    
Capitalized finited lived intangible assets 39,691 0
Patents    
Acquired Finite-Lived Intangible Assets [Line Items]    
Capitalized finited lived intangible assets $ 23,406 43,252
Patents | Minimum    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finited lived intangible assets, estimated useful life 7 years  
Patents | Maximum    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finited lived intangible assets, estimated useful life 10 years  
Favorable contract assets    
Acquired Finite-Lived Intangible Assets [Line Items]    
Capitalized finited lived intangible assets $ 0 $ 80,000