Debt (Tables)

3 Months Ended

Mar. 31, 2020

Debt [Abstract]

Schedule of Debt [Table Text Block]

Debt balances	March 31, 2020		December 31, 2019
NCCRE loan	$	487	$	492
Seller’s notes	2,744		2,810
Related party debt	—		15,000
Financing liability	19,052		19,052
Finance lease liabilities	6,006		6,132
SAF loan	19,438		—
SAF loan collateral (related party)	22,254		—
Total debt	$	69,981	$	43,486
Less: current portion of debt	22,514		15,300
Total long-term debt	$	47,467	$	28,186

Interest Income and Interest Expense Disclosure [Table Text Block]

Interest Expense	Three Months Ended March 31,
	2020		2019
NCCRE loan	5		5
Seller’s notes	72		101
Interest expense on financing liability	591		—
Interest expense on finance lease liability	215		12
Interest expense on SAF loan	89		—
Interest expense on SAF loan collateral (related party)	254		—
Total interest expense	$	1,226	$	118