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Intangible Assets - Goodwill Balance (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]    
Goodwill, beginning balance $ 4,016,722 $ 8,316,722
Acquisitions, impairments or other changes during the year 0 (4,300,000)
Goodwill, ending balance $ 4,016,722 $ 4,016,722