Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments - Narrative (Details)

v3.19.1
Fair Value of Financial Instruments - Narrative (Details)
3 Months Ended
Mar. 31, 2019
USD ($)
financial_instrument
Mar. 31, 2018
USD ($)
Dec. 31, 2018
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Proceeds from sale of equity securities $ 849,815 $ 0  
Realized gain on sale of equity securities 325,811 0  
Unrealized loss on equity securities 53,125 88,296  
Fair value of equity securities $ 2,901,423   $ 2,935,000
Derivative asset, number of instruments held | financial_instrument 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 $ 6,148,230    
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 $ 154,060  
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 $ 99,904   $ 147,465