Quarterly report pursuant to Section 13 or 15(d)

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

Intangible Assets and Liabilities Other Than Goodwill -Amounts related to intangible assets (Details) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 2,581,672	$ 2,581,672
Less - accumulated amortization	(1,633,787)	(1,584,078)
Intangible assets, net	947,885	997,594
Unfavorable contract liability	2,618,168	2,618,168
Less - accumulated amortization	(1,859,232)	(1,797,951)
Unfavorable contract liability, net	758,936	820,217
Product Certifications
Finite-Lived Intangible Assets [Line Items]
Intangible assets	777,465	777,465
Less - accumulated amortization	(597,499)	(584,863)
Intangible assets, net	179,966	192,602
Patents
Finite-Lived Intangible Assets [Line Items]
Intangible assets	888,910	888,910
Less - accumulated amortization	(427,515)	(405,140)
Intangible assets, net	461,395	483,770
Developed Technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets	240,000	240,000
Less - accumulated amortization	(160,000)	(156,000)
Intangible assets, net	80,000	84,000
Favorable contract asset
Finite-Lived Intangible Assets [Line Items]
Intangible assets	384,465	384,465
Less - accumulated amortization	(373,363)	(372,091)
Intangible assets, net	11,102	12,374
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	(75,410)	(65,984)
Intangible assets, net	$ 188,526	$ 197,952