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

6 Months Ended

12 Months Ended

Jun. 30, 2013

Dec. 31, 2012

Earnings Per Share [Abstract]

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

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Numerator
Net income (loss)	$	(24,858	)	$	2,524		$	(13,764	)	$	15,096
Preferred stock dividends		(138	)		(138	)		(276	)		(276	)
Net income (loss) applicable to common shares for basic and diluted earnings per share	$	(24,996	)	$	2,386		$	(14,040	)	$	14,820
Denominator
Basic weighted average common shares		303,566			285,312			294,317			285,303
Dilutive stock options and restricted stock		—			9,848			—			10,797
Diluted weighted average common shares		303,566			295,160			294,317			296,100
Basic earnings (loss) per common share
Net income (loss) applicable to common shares	$	(0.08	)	$	0.01		$	(0.05	)	$	0.05
Diluted earnings (loss) per common share
Net income (loss) applicable to common shares	$	(0.08	)	$	0.01		$	(0.05	)	$	0.05

	Year ended December 31,
	2012			2011			2010
Numerator
Net income	$	14,954		$	151,164		$	48,983
Preferred stock dividends		(552	)		(552	)		(13,633	)
Net income applicable to common shares	$	14,402		$	150,612		$	35,350
Denominator
Basic weighted average common shares		285,375			280,956			251,146
Dilutive stock options, restricted stock, and warrants		12,191			16,077			18,455
Diluted weighted average common shares		297,566			297,033			269,601
Basic earnings per common share	$	0.05		$	0.54		$	0.14
Diluted earnings per common share	$	0.05		$	0.51		$	0.13

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

	Year ended December 31,
	2012		2011		2010
Stock options		570,005		552,388		596,388