Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments - Narrative (Details)

v3.19.3
Fair Value of Financial Instruments - Narrative (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2019
USD ($)
financial_instrument
Sep. 30, 2019
USD ($)
financial_instrument
Sep. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Proceeds from sale of equity securities   $ 1,091,644 $ 0  
Realized gain on sale of equity securities   474,227 0  
Unrealized loss on equity securities $ 180,000 281,125 522,703  
Fair value of equity securities $ 2,580,000 $ 2,580,000   $ 2,935,000
Derivative asset, number of instruments held | financial_instrument 1 1    
Level 3 Inputs        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Charge related to change in fair value of earn-out liability   $ 6,366,324    
MUSA-Stainless | Level 3 Inputs        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Charge related to change in fair value of earn-out liability   0 $ 219,548  
Term Loan | Palmer of Texas | Interest Rate Swap | Level 2 Inputs        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset, fair value, gross asset $ 2,580 $ 2,580   $ 147,465