Note 10 - Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Schedule of Quarterly Financial Information [Table Text Block]

	First			Second			Third			Fourth
2015 Quarters
Revenues	$	6,826		$	25,842		$	10,987		$	4,602
Net (Loss) Income		(15,164	)		4,901			(14,621	)		(18,135	)
Basic net (loss) income per share		(0.21	)		0.07			(0.20	)		(0.25	)
Diluted net (loss) income per share		(0.21	)		0.06			(0.20	)		(0.25	)
2014 Quarters
Revenues	$	3,458		$	1,466		$	3,238		$	5,446
Net Loss		(10,137	)		(14,649	)		(8,731	)		(11,672	)
Basic and diluted net loss per share		(0.17	)		(0.23	)		(0.12	)		(0.16	)