Note 13 - Income (Loss) Per Common Share (Details) - Weighted Average Common Shares - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Numerator
Net income (loss)	$ (86,968)	$ 17,824	$ (25,130)
Preferred stock dividends	(552)	(552)	(552)
Net income (loss) applicable to common shares	$ (87,520)	$ 17,272	$ (25,682)
Denominator
Basic weighted average common shares (in Shares)	373,954	353,442	318,679
Dilutive stock options, restricted stock, and warrants (in Shares)		3,993
Diluted weighted average common shares (in Shares)	373,954	357,435	318,679
Basic earnings (loss) per common share (in Dollars per share)	$ (0.23)	$ 0.05	$ (0.08)
Diluted earnings (loss) per common share (in Dollars per share)	$ (0.23)	$ 0.05	$ (0.08)