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Commitments and Contingencies (Details) - USD ($)			12 Months Ended
Commitments and Contingencies (Details) - USD ($)	Aug. 01, 2017	Apr. 19, 2017	Dec. 31, 2019	Dec. 31, 2018	Oct. 31, 2018
Loss Contingencies [Line Items]
Industrial revenue bonds					$ 10,000,000
Capital lease obligations			$ 0	$ 0
OSHA, loss in period		$ 138,000
Payments for legal settlements		$ 75,000
Civil penalties sought	$ 250,000
Damages awarded			251,000
Clean Air Act Violation
Loss Contingencies [Line Items]
Fine payable due to plea agreement			$ 1,000,000
EPA Administrative Civil Penalty
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss	$ 250,000