Note 11 - Quarterly Financial Information (Unaudited) - Summary of Quarterly Financial Information (Details) - USD ($) $ / shares in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Revenue	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Expenses	(27,882)	(42,817)	(69,486)	(52,680)	(91,610)	(25,984)	(27,824)	(37,861)	(192,865)	(183,279)
Net Gain(Loss)	$ (27,882)	$ (42,817)	$ (69,486)	$ (52,680)	$ (91,610)	$ (25,984)	$ (27,824)	$ (37,861)	$ (192,865)	$ (183,279)
Basic and Diluted (in dollars per share)	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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