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Supplemental Cash Flow Information - Summary of Supplemental Information to Consolidated Statements of Cash Flows (Detail) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Supplemental cash flow information:    
Cash paid for interest $ 351,741 $ 364,372
Cash paid for income taxes $ 76,030  
Supplemental non-cash activities:    
Sale of goodwill and intangible assets   246,585
Investment in Earth Media Partners, LLC   $ (246,585)