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Goodwill - Summary of Carrying Amount of Goodwill (Detail) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]    
Beginning Balance $ 25,377,447 $ 15,275,264
Business/Consolidated/acquisition/affiliate 3,219,100 10,102,183
Ending Balance $ 28,596,547 $ 25,377,447