Note 13 - Income (Loss) Per Common Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year ended December 31,
	2015			2014			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		373,954			353,442			318,679
Dilutive stock options, restricted stock, and warrants		—			3,993			—
Diluted weighted average common shares		373,954			357,435			318,679
Basic earnings (loss) per common share	$	(0.23	)	$	0.05		$	(0.08	)
Diluted earnings (loss) per common share	$	(0.23	)	$	0.05		$	(0.08	)