Sum of investments and unrestricted cash as of the balance sheet date.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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Basis of Presentation (Details) $ in Thousands		3 Months Ended				6 Months Ended
Basis of Presentation (Details) $ in Thousands	Feb. 08, 2019	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)
Basis of Presentation
Investments and Cash		$ 81,300				$ 81,300
Net Loss		$ (11,779)	$ (17,239)	$ (16,407)	$ (118,131)	(29,018)	$ (134,538)
Net cash used in operations						$ 24,275	$ 45,417
Reverse stock split	0.067