Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments - Narrative (Details)

v3.10.0.1
Fair Value of Financial Instruments - Narrative (Details)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2018
USD ($)
financial_instrument
Sep. 30, 2018
USD ($)
financial_instrument
Sep. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
lb
$ / lb
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Gain on investment in equity securities $ 493,518 $ (522,703) $ 0  
Fair value of equity securities $ 4,985,000 $ 4,985,000   $ 537,233
Derivative asset, number of instruments held | financial_instrument 1 1    
Commodity Option | Level 2 Inputs        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset, fair value, gross asset       $ 9,027
Notional quantities of contracts in place | lb       1,351,494
Commodity Option | Level 2 Inputs | Minimum        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative strike price (in usd per lb) | $ / lb       3.75
Commodity Option | Level 2 Inputs | Maximum        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative strike price (in usd per lb) | $ / lb       4.64
Term Loan | Interest Rate Swap | Level 2 Inputs        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Variable rate basis on interest rate swap   LIBOR    
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 $ 227,929 $ 227,929   $ 127,981