Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Liabilities Other Than Goodwill -Amounts related to intangible assets (Details)

v3.21.2
Intangible Assets and Liabilities Other Than Goodwill -Amounts related to intangible assets (Details) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]    
Intangible assets $ 2,545,420 $ 2,496,470
Less - accumulated amortization (1,311,373) (1,136,151)
Intangible assets, net 1,234,047 1,360,319
Unfavorable contract liability 2,534,818 2,534,818
Less - accumulated amortization (1,185,926) (917,767)
Unfavorable contract liability, net 1,348,892 1,617,051
Product Certifications    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets 765,850 726,159
Less - accumulated amortization (519,083) (478,357)
Intangible assets, net 246,767 247,802
Patents    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets 864,273 855,014
Less - accumulated amortization (291,664) (220,764)
Intangible assets, net 572,609 634,250
Developed Technology    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets 240,000 240,000
Less - accumulated amortization (136,000) (124,000)
Intangible assets, net 104,000 116,000
Favorable contract asset    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets 384,465 384,465
Less - accumulated amortization (345,773) (313,030)
Intangible assets, net 38,692 71,435
Trademarks    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets 26,896 26,896
Less - accumulated amortization 0 0
Intangible assets, net 26,896 26,896
In Process R&D    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets 263,936 263,936
Less - accumulated amortization (18,853) 0
Intangible assets, net $ 245,083 $ 263,936