Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments - Summary of Changes in Fair Value of Company's Earn-Out Liability (Details)

v3.10.0.1
Fair Value of Financial Instruments - Summary of Changes in Fair Value of Company's Earn-Out Liability (Details) - USD ($)
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Earn-out payments to MUSA $ 1,172,065 $ 0
Level 3 Inputs    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance at December 31, 2017 4,833,850  
Earn-out payments to MUSA (1,172,065)  
Change in fair value during the period 2,461,658  
Balance at June 30, 2018 $ 6,123,443