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Fair Value Measurements - Summary of Notes Payable (Details) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Related Parties [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Notes Payable, Fair Value $ 1,470,088 $ 1,384,195
2016 Unrelated Notes [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Notes Payable, Fair Value [1] 1,034,841 1,000,261
2017 Unrelated Notes [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Notes Payable, Fair Value [1] 2,279,653 2,275,686
2018 Unrelated Notes [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Notes Payable, Fair Value [2] 1,165,732 900,000
Unrelated Notes [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Notes Payable, Fair Value 4,480,225 4,175,947
Shealy Note [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Notes Payable, Fair Value [3] 24,014 46,807
2016 Related Notes [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Notes Payable, Fair Value [1] 446,835 433,117
2017 Related Notes [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Notes Payable, Fair Value [1] 505,150 504,271
2018 Related Notes [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Notes Payable, Fair Value [2] $ 518,103 $ 400,000
[1] The fair value was based upon Level 2 inputs. See Note 8 for additional information about the Company's 2016 and 2017 Unrelated Notes. See Note 9 for additional information about the Company's 2016 and 2017 Related Notes.
[2] The fair value was based upon Level 2 inputs as of June 30, 2019. The 2018 Unrelated and Related Notes were closed in September 2018 between market participants, therefore, given proximity of the transactions to year-end, fair value approximated carrying value at December 31, 2018. See Note 8 for additional information about the Company's 2018 Unrelated Notes. See Note 9 for additional information about the Company's 2018 Related Notes.
[3] The fair value was based upon Level 2 inputs. Short term maturity and interest rate approximates rate that the Company realized with issuance of new debt in September 2018; therefore, carrying value approximates fair value. See Note 9 for additional information about the Company's $250,000 Shealy Note.