Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Components of Intangible assets

Intangible assets consist of the following:

	September 30, 2021
	Cost		Accumulated Amortization		Net
Raw material supply agreement	$	6,230	$	(4,096)	$	2,134
Renewable diesel technology	8,300		(4,058)		4,242
Acquired customer relationships	4,747		(2,395)		2,352
Other intangibles	200		(197)		3
Total intangible assets	$	19,477	$	(10,746)	$	8,731

	December 31, 2020
	Cost		Accumulated Amortization		Net
Raw material supply agreement	$	6,230	$	(3,618)	$	2,612
Renewable diesel technology	8,300		(3,643)		4,657
Acquired customer relationships	4,747		(2,025)		2,722
Other intangible assets	904		(187)		717
Total intangible assets	$	20,181	$	(9,473)	$	10,708

Estimated Amortization Expense

The estimated intangible asset amortization expense for the remainder of 2021 through 2027 and thereafter is as follows:

October 1, 2021 through December 31, 2021	$	452
2022	1,619
2023	1,629
2024	1,640
2025	1,443
2026	611
2027 and thereafter	1,337
Total	$	8,731