Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets-Net - Schedule of Finite-Lived Intangible Assets (Details)

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Goodwill and Intangible Assets-Net - Schedule of Finite-Lived Intangible Assets (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Total intangible assets $ 25,356,365 $ 19,226,094
Less: Accumulated amortization (18,176,212) (16,716,550)
Intangible assets - net 7,180,153 2,509,544
Contracts and Relationships Acquired [Member]    
Finite-Lived Intangible Assets [Line Items]    
Total intangible assets 22,591,300 16,491,300
Non-Compete Agreements [Member]    
Finite-Lived Intangible Assets [Line Items]    
Total intangible assets 1,236,377 1,236,377
Other Intangible Assets [Member]    
Finite-Lived Intangible Assets [Line Items]    
Total intangible assets $ 1,528,688 $ 1,498,417