Quarterly report pursuant to Section 13 or 15(d)

Transportation and Distribution Revenue - Contract Assets and Liabilities (Details)

v3.20.1
Transportation and Distribution Revenue - Contract Assets and Liabilities (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Change In Contract With Customer, Liability [Roll Forward]    
Beginning Balance $ 6,891,798  
Ending Balance 6,711,170 $ 6,891,798
Transportation and distribution revenue    
Change In Contract With Customer, Liability [Roll Forward]    
Beginning Balance 6,850,790 6,522,354
Unrecognized Performance Obligations 0 887,916
Recognized Performance Obligations (160,368) (559,480)
Ending Balance $ 6,690,422 $ 6,850,790