Debt (Tables)

6 Months Ended

Jun. 30, 2020

Debt [Abstract]

Schedule of Debt [Table Text Block]

Debt balances	June 30, 2020		December 31, 2019
NCCRE loan	$	481	$	492
Seller’s notes	2,679		2,810
Related party debt	—		15,000
Financing liability (related party)	15,253		19,052
Finance lease liabilities	5,998		6,132
SAF loan	19,638		—
SAF loan collateral (related party)	23,358		—
Convertible note, net of debt discount	9,288		—
Bridge loan	14,173		—
Total debt	$	90,868	$	43,486
Less: current portion of debt	47,009		15,300
Total long-term debt	$	43,859	$	28,186

Interest Income and Interest Expense Disclosure [Table Text Block]

Interest Expense	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
NCCRE loan	$	4	$	5	$	9	$	10
Seller’s notes	72		101		144		201
Interest expense on financing liability	707		—		1,298		—
Interest expense on finance lease liability	216		25		431		38
Interest expense on SAF loan	387		—		476		—
Interest expense on SAF loan collateral (related party)	1,103		—		1,357		—
Interest expense on convertible note	753		—		753		—
Interest expense on bridge loan	491		—		491		—
Total interest expense	$	3,733	$	131	$	4,959	$	249