Note 5 - Loss Per Common Share (Details) - Weighted Average Common Shares - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Numerator
Net loss	$ (26,667)	$ (14,399)	$ (14,115)	$ (2,758)
Preferred stock dividends	(138)	(138)	(276)	(276)
Net loss applicable to common shares for basic and diluted earnings per share	$ (26,805)	$ (14,537)	$ (14,391)	$ (3,034)
Denominator
Basic weighted average common shares	371,295	344,216	370,042	343,437
Dilutive stock options and restricted stock	0	0	0	0
Diluted weighted average common shares	371,295	344,216	370,042	343,437
Basic loss per common share
Net loss applicable to common shares	$ (0.07)	$ (0.04)	$ (0.04)	$ (0.01)
Diluted loss per common share
Net loss applicable to common shares	$ (0.07)	$ (0.04)	$ (0.04)	$ (0.01)