Quarterly report pursuant to Section 13 or 15(d)

Transportation and Distribution Revenue - Balance Sheet and Income Statement (Details)

v3.10.0.1
Transportation and Distribution Revenue - Balance Sheet and Income Statement (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Jan. 01, 2018
Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Transportation and distribution revenue $ 4,244,722 $ 5,270,628 $ 12,071,858 $ 15,056,998    
Deferred Tax Asset 4,854,108   4,854,108   $ 3,102,493 $ 2,244,629
Unearned revenue 6,826,557   6,826,557   6,704,826 3,397,717
Additional paid-in capital 319,741,659   319,741,659   329,324,471 331,773,716
Deferred tax benefit (738,274) $ 126,440 (1,751,615) $ (134,322)    
Balances Without Adoption of ASC 606 [Member]            
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Deferred Tax Asset           2,244,629
Unearned revenue           3,397,717
Additional paid-in capital           $ 331,773,716
Balances Without Adoption of ASC 606 [Member] | ASU 2014-09 [Member]            
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Transportation and distribution revenue 5,236,855   15,048,256      
Deferred Tax Asset 3,224,166   3,224,166      
Unearned revenue 543,049   543,049      
Additional paid-in capital 324,395,224   324,395,224      
Deferred tax benefit (480,915)   (979,537)      
Effect of Change Higher/(Lower) [Member] | ASU 2014-09 [Member]            
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Transportation and distribution revenue (992,133)   (2,976,398)      
Deferred Tax Asset 1,629,942   1,629,942   857,864  
Unearned revenue 6,283,508   6,283,508   3,307,109  
Additional paid-in capital (4,653,565)   (4,653,565)   $ (2,449,245)  
Deferred tax benefit $ (257,359)   $ (772,078)