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LEASES (Tables)
 12 Months Ended
Dec. 31, 2019
Leases [Abstract]  
Schedule of Maturities of Operating Lease Liabilities
Maturities of our lease liabilities for all operating leases are as follows as of December 31, 2019:

 
Facilities
 
Equipment
 
Plant
 
Railcar
 
Total
Year 1
$
719,607

 
$
161,539

 
$
4,060,417

 
$
943,741

 
$
5,885,304

Year 2
549,293

 
161,539

 
4,060,417

 
582,386

 
5,353,635

Year 3
392,654

 
26,953

 
4,060,417

 
24,696

 
4,504,720

Year 4
306,000

 
—

 
4,060,417

 
1,278

 
4,367,695

Year 5
300,000

 
—

 
4,060,417

 
—

 
4,360,417

Thereafter
2,375,000

 
—

 
35,524,907

 
—

 
37,899,907

Total lease payments
$
4,642,554

 
$
350,031

 
$
55,826,992

 
$
1,552,101

 
$
62,371,678

Less: interest
(1,685,627
)
 
(22,605
)
 
(24,980,750
)
 
(95,811
)
 
(26,784,793
)
Present value of lease liabilities
$
2,956,927

 
$
327,426

 
$
30,846,242

 
$
1,456,290

 
$
35,586,885
Schedule of Operating Lease Weighted Average Remaining Lease Terms and Discount Rates
The weighted average remaining lease terms and discount rates for all of our operating leases were as follows as of December 31, 2019:
Remaining lease term and discount rate:
 
December 31, 2019
Weighted average remaining lease terms (years)
 
 
   Lease facilities
 
5.34

   Lease equipment
 
2.17

   Lease plant
 
13.26

   Lease railcar
 
1.33

Weighted average discount rate
 
 
   Lease facilities
 
9.17
%
   Lease equipment
 
8.00
%
   Lease plant
 
9.37
%
   Lease railcar
 
8.00
%