Note 7 - Earnings Per Common Share (Detail) - Basic and Diluted Earnings per Common Share (USD $) In Thousands, except Per Share data	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Net income	$ 9,116		$ 2,585		$ 30,162		$ 18,475
Preferred dividends	(2,413)		(2,412)		(7,238)		(7,237)
Accretion on preferred stock	(173)		(163)		(511)		(483)
Net income applicable to non-vested restricted shares	(96)		1		(338)		(145)
Net income applicable to common shares	$ 6,434		$ 11		$ 22,075		$ 10,610
Weighted-average common shares outstanding:
Weighted-average common shares outstanding (basic) (in Shares)	73,361		73,072		73,258		72,199
Weighted-average diluted common shares outstanding (in Shares)	73,361		73,072		73,258		72,199
Basic earnings per share (in Dollars per share)	$ 0.09		$ 0.00		$ 0.30		$ 0.15
Diluted earnings per share (in Dollars per share)	$ 0.09		$ 0.00		$ 0.30		$ 0.15
Anti-dilutive shares not included in the computation of diluted earnings per share (1) (in Shares)	3,561	[1]	3,799	[1]	3,637	[1]	3,832	[1]

[1] Represents outstanding stock options and common stock warrants for which the exercise price is greater than the average market price of the Company's common stock.