Convertible Debt at Fair Value (Tables)

6 Months Ended

Jun. 30, 2019

Convertible Debt at Fair Value [Abstract]

Difference Between Fair Value and Unpaid Principal Balance of Note

	Fair value as of June 30, 2019		Unpaid principal balance as of June 30, 2019		Fair value carrying amount over/(under) unpaid principal
6.25% Convertible Debt	$	1,072	$	1,012	$	60