Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash flows from operating activities:
Net income/(loss)	$ 6,619,536	$ 3,163,771	$ (5,607,337)
Adjustments to reconcile net income/(loss)to net cash from operating activities:
Depreciation and amortization	1,842,943	1,655,025	1,287,785
Provision for loan losses	4,220,000	4,745,000	10,735,000
Stock based compensation expense	45,427	46,910	68,906
Earnings on BOLI	(568,070)	(470,216)	(456,874)
(Gain)Loss on sale of available for sale (HTM) securities	0	(888,059)	0
(Gain)Loss on sale of available for sale (AFS) securities	(776,753)	(221,684)	(264,112)
(Gain)Loss on sale of premises and equipment	3,772	678	2,605
(Gain)Loss on sale of loans	(956,641)	(628,950)	(606,477)
Loans originated for sale	(39,424,361)	(37,255,823)	(34,528,476)
Impairment on available for sale securities	149,045	158,303	750,770
Gain on settlement of interest rate floor	0	0	(364,766)
(Gain)Loss on Sale of OREO	79,903	54,790	287,622
Write-downs of OREO	733,045	1,362,441	1,131,067
Proceeds from the sale of loan held for sale	43,591,506	39,585,990	31,444,478
Change in accrued interest receivable	(283,917)	47,906	175,401
Change in other assets	(1,701,050)	3,798,823	(7,603,432)
Change in accrued interest payable	732,711	934,828	(178,071)
Change in other liabilities	871,270	365,941	291,800
Net cash from operating activities	15,178,366	16,455,674	(3,434,111)
Cash flows from investing activities:
Net change in long-term interest bearing deposits	546,000	(996,000)	0
Net change in loans	4,516,118	31,547,695	19,323,776
Purchase of securities AFS	(55,317,753)	(53,141,782)	(32,296,763)
Purchase of securities HTM	0	(1,721,320)	(4,899,228)
Purchase of FHLB and FRB stock	0	(75,000)	(218,354)
Sale or redemption of FHLB and FRB stock	267,400	250,700	0
Purchase of life insurance	(3,000,000)	0	0
Proceeds from maturities, calls and paydowns of securities AFS	26,296,331	24,724,045	16,745,343
Proceeds from maturities of securities HTM	0	802,365	403,251
Proceeds from sale of securities AFS	13,469,065	8,327,894	9,483,978
Proceeds from sale of securities HTM	0	900,784	0
Purchase of premises, equipment, and leasehold improvements	(1,421,108)	(1,112,834)	(1,111,542)
Proceeds on Sale of OREO	2,750,820	3,950,257	1,161,928
Proceeds from sale of impaired loans	4,126,701	0	0
Net cash used in investing activities	(7,766,426)	13,456,804	8,592,389
Cash flows from financing activities:
Net change in deposits	25,680,700	7,975,785	(17,856,763)
Proceeds from issuance of preferred stock	0	0	1,788,000
Gross proceeds from issuance of common stock	0	2,826,810	0
Cash dividends paid on preferred stock	0	0	(1,579)
Proceeds from long-term FHLB advances	8,000,000	0	0
Repayment of long-term FHLB advances	(3,500,000)	(8,700,000)	(9,000,000)
Repayment of short-term FHLB advances	0	(27,000,000)	13,000,000
Net cash from financing activities	30,180,700	(24,897,405)	(12,070,342)
Net change in cash and cash equivalents	37,592,640	5,015,073	(6,912,064)
Cash and cash equivalents, beginning of period	29,679,382	24,664,309	31,576,373
Cash and cash equivalents, end of period	67,272,022	29,679,382	24,664,309
Cash paid (refunded) during the year for:
Interest	5,406,207	7,256,603	12,424,696
Income taxes	820,000	(1,140,502)	1,265,000
Non-cash Items:
Transfer of loans to Other Real Estate Owned	2,408,735	5,017,662	4,562,948
Transfer of securities from held-to-maturity to available-for-sale	0	5,470,254	0
Transfer of loans to Loans Held for Sale	$ 3,000,000	$ 0	$ 0