Goodwill and Other Intangibles (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Jul. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill	$ 101,303,000	$ 101,303,000		$ 85,615,000
Goodwill, Impairment Loss	0	0
Net Amortization Expense Included in Depreciation and Amortization		1.8
Total intangible liabilities, net	(2,344,000)	(2,344,000)
Total intangible liabilities, net	(2,843,000)	(2,843,000)
Total intangible liabilities, net	5,187,000	5,187,000
Remainder of 2020	3,011,000	3,011,000
2021	(1,433,000)	(1,433,000)
2022	(1,780,000)	(1,780,000)
2023	(1,911,000)	(1,911,000)
2024	(1,911,000)	(1,911,000)
Thereafter	(1,163,000)	(1,163,000)
Total	5,187,000	5,187,000
Georgia Biomass
Business Acquisition [Line Items]
Goodwill			$ 15,700,000
Customer Contracts
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross	5,400,000	5,400,000
Finite-Lived Intangible Assets, Accumulated Amortization	(2,200,000)	(2,200,000)
Finite-Lived Intangible Assets, Net	3,200,000	3,200,000
Assembled Workforce
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross	1,856,000	1,856,000
Finite-Lived Intangible Assets, Accumulated Amortization	(1,130,000)	(1,130,000)
Finite-Lived Intangible Assets, Net	726,000	726,000
Unfavorable Customer Contract
Business Acquisition [Line Items]
Finite-Lived Intangible Liabilities, Gross	(3,300,000)	(3,300,000)
Finite Lived Intangible Liabilities, Accumulated Amortization	256,000	256,000
Finite-Lived Intangible Liabilities, Net	(3,044,000)	(3,044,000)
Unfavorable Shipping Contract
Business Acquisition [Line Items]
Finite-Lived Intangible Liabilities, Gross	(6,300,000)	(6,300,000)
Finite Lived Intangible Liabilities, Accumulated Amortization	231,000	231,000
Finite-Lived Intangible Liabilities, Net	$ (6,069,000)	$ (6,069,000)