|
Fair value, Financial Instruments Summary (Details) (USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Financial assets | ||
| Investment securities available for sale | $ 36,696 | $ 30,163 |
|
Carrying Value [Member] | Level 1 [Member]
|
||
| Financial assets | ||
| Cash Fair Value Disclosure | 23,271,435 | 55,557,541 |
| Investment securities available for sale | 4,816,213 | 10,207,805 |
|
Carrying Value [Member] | Level 2 [Member]
|
||
| Financial assets | ||
| Cash Equivalents Fair Value Disclosure | 3,834,563 | 7,228,475 |
| Investment securities available for sale | 31,880,069 | 19,955,487 |
| Federal Home Loan Bank stock | 2,396,600 | 2,647,000 |
| Loans held for sale | 19,729,508 | 16,168,405 |
| Loans | 306,467,001 | 353,186,646 |
| Impaired loans | 57,753,817 | 51,867,625 |
| Other real estate owned | 11,212,437 | 874,246 |
| Accrued interest receivable | 1,910,147 | 2,046,524 |
| Financial liabilities | ||
| Deposits | 450,419,908 | 485,521,052 |
| FHLB borrowings | 29,000,000 | 37,750,000 |
| Trust preferred securities | 8,764,000 | 8,764,000 |
| Other borrowings | 5,062,344 | 5,778,661 |
| Accrued interest payable | 703,817 | 592,283 |
|
Carrying Value [Member] | Level 3 [Member]
|
||
| Financial assets | ||
| Impaired loans | 14,700,558 | 12,787,473 |
| Other real estate owned | 6,464,625 | 8,302,921 |
| Bank owned life insurance | 6,159,335 | 6,065,305 |
|
Estimated Fair Value [Member] | Level 1 [Member]
|
||
| Financial assets | ||
| Cash Fair Value Disclosure | 23,271,435 | 55,557,541 |
| Investment securities available for sale | 4,816,213 | 10,207,805 |
|
Estimated Fair Value [Member] | Level 2 [Member]
|
||
| Financial assets | ||
| Cash Equivalents Fair Value Disclosure | 3,834,563 | 7,228,475 |
| Investment securities available for sale | 31,880,069 | 19,955,487 |
| Federal Home Loan Bank stock | 2,396,600 | 2,647,000 |
| Loans held for sale | 19,729,508 | 16,168,405 |
| Loans | 305,208,432 | 353,349,981 |
| Impaired loans | 57,753,817 | 51,867,625 |
| Other real estate owned | 11,212,437 | 874,246 |
| Accrued interest receivable | 1,910,147 | 2,046,524 |
| Financial liabilities | ||
| Deposits | 454,971,918 | 487,915,609 |
| FHLB borrowings | 29,167,554 | 37,963,672 |
| Trust preferred securities | 8,764,000 | 8,764,000 |
| Other borrowings | 5,062,344 | 5,778,661 |
| Accrued interest payable | 703,817 | 592,283 |
|
Estimated Fair Value [Member] | Level 3 [Member]
|
||
| Financial assets | ||
| Impaired loans | 14,700,558 | 12,787,473 |
| Other real estate owned | 6,464,625 | 8,302,921 |
| Bank owned life insurance | $ 6,159,335 | $ 6,065,305 |