Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments - Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details)

v3.19.3
Fair Value of Financial Instruments - Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Fair Value, Input, Level 3 [Member] - USD ($)
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Balance, beginning $ 526,432 $ 603,411
Change in fair value (343,768) 68,253
Payments (182,664) (111,495)
Balance, ending $ 560,169