Derivatives - Narrative (Details) $ / shares in Units, $ in Thousands		3 Months Ended			9 Months Ended
	May 28, 2020 USD ($)	Sep. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2020 USD ($) $ / shares shares	Jul. 20, 2020 $ / shares	Apr. 06, 2020 USD ($)	Dec. 31, 2019 USD ($)	Oct. 31, 2019 USD ($)
Derivative [Line Items]
Derivative liability including prepayment penalties and future interest payments			$ 5,600	$ 5,300
Gain (loss) in change in the fair value of derivative liability					$ 0
Remeasured derivative liability		$ 6,726			6,726			$ 6,776
Reverse stock split, conversion ratio	0.10
Derivative liability	$ 6,300	5,600			5,600
Mark-to-market loss recognized		$ 3,500			$ 3,500
Pre-reverse stock split shares (in shares) | shares		538,995			538,995
Exercise price (dollars per share) | $ / shares		$ 0.01			$ 0.01	$ 0.01
Estimated fair value of the Warrants	$ 2,200	$ 300			$ 300		$ 1,400
Warrants outstanding (in shares) | shares		134,667			134,667
(Level 3) | Derivative Liability
Derivative [Line Items]
Initial Measurement		$ 5,481	1,406
Subsequent remeasured amount		6,726	5,571	8,034	$ 6,726			6,776
Loss recorded on derivative liability		4,326	4,591	(1,258)
Revolving Credit Facility | Line of Credit | (Level 3) | Derivative Liability
Derivative [Line Items]
Initial Measurement		0	0
Subsequent remeasured amount		0	5,571	5,253	0			0
Loss recorded on derivative liability		5,571	318	(5,253)
Series B Senior Unsecured Convertible Notes | Convertible Notes Payable | (Level 3) | Derivative Liability
Derivative [Line Items]
Initial Measurement		0	0
Subsequent remeasured amount		0	0	2,781	0			$ 6,776
Loss recorded on derivative liability		0	$ 3,513	3,995
2023 Series A Unsecured Convertible Notes for Series B Senior Unsecured Convertible Notes
Derivative [Line Items]
Derivative liability									$ 13,500
Remeasured derivative liability				2,800
Gain on change in fair value of derivative				$ 4,000
2023 Series A Unsecured Convertible Notes for Series B Senior Unsecured Convertible Notes | Series B Senior Unsecured Convertible Notes | Convertible Notes Payable
Derivative [Line Items]
Fair value of embedded derivative liability		$ 2,000			$ 2,000				$ 2,000