Annual report pursuant to Section 13 and 15(d)

Leased Properties and Leases - Amortization, Depreciation Expense, Accretion Expense (Details)

v3.10.0.1
Leased Properties and Leases - Amortization, Depreciation Expense, Accretion Expense (Details) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Sale Leaseback Transaction [Line Items]      
Depreciation Expense $ 3,400,000 $ 3,400,000 $ 3,400,000
ARO Accretion Expense 499,562 663,065  
All Properties [Member]      
Sale Leaseback Transaction [Line Items]      
Depreciation Expense 20,986,461 19,935,994 18,350,454
Amortization Expense - Deferred Lease Costs 91,932 91,932 91,932
ARO Accretion Expense 499,562 663,065 726,664
Net Deferred Lease Costs 779,668 871,600  
GIGS      
Sale Leaseback Transaction [Line Items]      
Depreciation Expense 10,836,590 9,754,596 8,605,506
Amortization Expense - Deferred Lease Costs 30,564 30,564 30,564
ARO Accretion Expense 499,562 663,065 726,664
Net Deferred Lease Costs 229,319 259,883  
Pinedale LGS      
Sale Leaseback Transaction [Line Items]      
Depreciation Expense 8,869,440 8,869,440 8,869,440
Amortization Expense - Deferred Lease Costs 61,368 61,368 61,368
Net Deferred Lease Costs 550,349 611,717  
Portland Terminal Facility      
Sale Leaseback Transaction [Line Items]      
Depreciation Expense 1,243,769 1,275,660 843,084
United Property Systems      
Sale Leaseback Transaction [Line Items]      
Depreciation Expense $ 36,662 $ 36,298 $ 32,424