CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY AND COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, except Share data	Total	Preferred Stock [Member]	Common Stock [Member]	Common Stock Warrants [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comp. Income, net [Member]
Balances, December 31, 2009 at Dec. 31, 2009	$ 701,020,181	$ 89,462,633	$ 33,029,719	$ 3,348,402	$ 524,366,603	$ 43,372,743	$ 7,440,081
Balance ( in shares) at Dec. 31, 2009			33,029,719
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY AND COMPREHENSIVE INCOME (LOSS)	32,616,943
Exercise of employee common stock options, stock appreciation rights, common stock warrants and related tax benefits	1,110,565	0	135,664	0	974,901	0	0
Exercise of employee common stock options, stock appreciation rights, common stock warrants and related tax benefits(in shares)			135,664
Issuance of restricted common shares, net of forfeitures	0	0	265,360	0	(265,360)	0	0
Issuance of restricted common shares, net of forfeitures (in shares)			265,360
Restricted shares withheld for taxes	(130,307)	0	(9,002)	0	(121,305)	0	0
Restricted shares withheld for taxes (in shares)			265,360
Compensation expense for restricted shares	1,191,571	0	0	0	1,191,571	0	0
Compensation expense for stock options	857,120	0	0	0	857,120	0	0
Accretion on preferred stock discount	0	664,459	0	0	0	(664,459)	0
Preferred dividends paid	(2,375,000)	0	0	0	0	(2,375,000)	0
Comprehensive income:
Net loss	(30,187,255)	0	0	0	0	(30,187,255)	0
Net unrealized gains on securities available-for-sale, net of deferred tax	10,428,262	0	0	0	0	0	10,428,262
Total comprehensive income	(19,758,993)
Balances, December 31, 2010	681,915,137	90,127,092	33,421,741	3,348,402	527,003,530	10,146,029	17,868,343
Balance ( in shares)			33,421,741
Balances, June 30, 2011 at Jun. 30, 2010	681,915,137	90,127,092	33,421,741	3,348,402	527,003,530	10,146,029	17,868,343
Balances, December 31, 2009 at Dec. 31, 2010	677,457,285	90,788,682	33,870,380	3,348,402	530,829,019	12,996,202	5,624,600
Balance ( in shares) at Dec. 31, 2010	33,870,380		33,870,380
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY AND COMPREHENSIVE INCOME (LOSS)	34,054,746
Exercise of employee common stock options, stock appreciation rights, common stock warrants and related tax benefits	719,199	0	106,919	0	612,280	0	0
Exercise of employee common stock options, stock appreciation rights, common stock warrants and related tax benefits(in shares)			106,919
Issuance of restricted common shares, net of forfeitures	0	0	158,303	0	(158,303)	0	0
Issuance of restricted common shares, net of forfeitures (in shares)			158,303
Issuance of Salary Stock Units (in shares)	291,181	0	18,680	0	272,501	0	0
Restricted shares withheld for taxes	(267,460)	0	(18,119)	0	(249,341)	0	0
Restricted shares withheld for taxes (in shares)			18,680
Compensation expense for restricted shares	1,570,425	0	0	0	1,570,425	0	0
Compensation expense for stock options	680,761	0	0	0	680,761	0	0
Accretion on preferred stock discount	0	633,631	0	0	0	(633,631)	0
Preferred dividends paid	(2,375,000)	0	0	0	0	(2,375,000)	0
Comprehensive income:
Net loss	9,876,571	0	0	0	0	9,876,571	0
Net unrealized gains on securities available-for-sale, net of deferred tax	11,275,060	0	0	0	0	0	11,275,060
Total comprehensive income	21,151,631
Balances, December 31, 2010	699,228,022	91,422,313	34,136,163	3,348,402	533,557,342	19,864,142	16,899,660
Balance ( in shares)	34,136,163		34,136,163
Balances, June 30, 2011 at Jun. 30, 2011	$ 699,228,022	$ 91,422,313	$ 34,136,163	$ 3,348,402	$ 533,557,342	$ 19,864,142	$ 16,899,660