Outstanding Debt (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Summary of the Notes by Maturity Dates

The following table provide a summary of the outstanding Note at December 31, 2019:

(in millions)	Conversion price		Current interest rate			Principal
Long term convertible notes payable
8.0% July 2019 Notes	$	1,500		8	%	$	2.0

The following table provides a summary of the Notes by their maturity dates (absent provisions of default) at December 31, 2018:

(in millions)	Interest rate	Conversion price		Principal		Unamortized Discount			Carrying value
December 4, 2018	8.0%	$	1.75	$	1.7	$	—		$	1.7
March 1, 2019	8.0%		1.75		0.6		(0.5	)		0.1
March 21, 2019	8.0%		1.75		0.4		(0.2	)		0.2
December 4, 2019	8.0%		1.75		0.9		(0.9	)		—
March 1, 2020	8.0%		1.75		0.8		(0.8	)		—
March 21, 2020	8.0%		1.75		0.1		(0.1	)		—
Total Convertible Notes Payable,    net				$	4.5	$	(2.5	)	$	2.0