Operating Leases - Components of Operating Lease Costs (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Lessee, Lease, Description [Line Items]
Operating lease costs	$ 710,904	$ 770,702
Cost of revenues - Freight and rail
Lessee, Lease, Description [Line Items]
Operating lease costs	664,488	760,961
Cost of revenues - Production
Lessee, Lease, Description [Line Items]
Operating lease costs	40,085	7,608
Administration expenses
Lessee, Lease, Description [Line Items]
Operating lease costs	$ 6,331	$ 2,133