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Goodwill and Intangible Assets - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]        
Aggregate amortization expense on intangible assets $ 267,000 $ 267,000 $ 799,688 $ 983,021
Estimated aggregate amortization expense for remainder of 2019 267,000   267,000  
Estimated aggregate amortization expense for 2020 547,000   547,000  
Estimated aggregate amortization expense for 2021 520,000   520,000  
Estimated aggregate amortization expense for 2022 493,000   493,000  
Estimated aggregate amortization expense for 2023 276,000   276,000  
Estimated aggregate amortization expense for 2024 $ 1,900,000   $ 1,900,000