Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

Recurring Fair Value Measurements	As of September 30, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	4,214	$	-	$	-	$	4,214
Liabilities:
Warrant liability	$	-	$	31,699	$	-	$	31,699

Recurring Fair Value Measurements	As of December 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	7,993	$	-	$	-	$	7,993
Restricted certificates of deposit	$	182	$	-	$	-	$	182
Liabilities:
Warrant liability	$	-	$	12,730	$	-	$	12,730

Non-recurring Fair Value Measurements	During the Year-Ended December 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Assets held for sale	$	-	$	-	$	10,383	$	10,383
Right of use assets	$	-	$	-	$	28,960	$	28,960
Property, plant and equipment, net	$	-	$	-	$	11,515	$	11,515
Railcars available for lease, net	$	-	$	-	$	13,175	$	13,175