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

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

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

	Year ended December 31,
	2014			2013			2012
Numerator
Net income (loss)	$	17,824		$	(25,130	)	$	14,954
Preferred stock dividends		(552	)		(552	)		(552	)
Net income (loss) applicable to common shares	$	17,272		$	(25,682	)	$	14,402
Denominator
Basic weighted average common shares		353,442			318,679			285,375
Dilutive stock options, restricted stock, and warrants		3,993			—			12,191
Diluted weighted average common shares		357,435			318,679			297,566
Basic earnings (loss) per common share	$	0.05		$	(0.08	)	$	0.05
Diluted earnings (loss) per common share	$	0.05		$	(0.08	)	$	0.05

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Year ended December 31,
	2014		2013
Stock options		259,342		570,005