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Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Oct. 07, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2010
--- | --- | --- | --- | --- | --- | --- | ---
Allowance for credit losses | 2,659 |  | 2,548 |  |  |  |
Amounts pledged | 755,395 |  | 653,651 |  |  |  |
Class A non-voting common stock |  |  |  |  |  |  |
Common stock issued | 13,489,162 |  | 13,572,265 | 13,572,265 |  |  |
Common stock, shares outstanding | 13,489,162 | 13,489,162 | 13,572,265 |  | 13,568,945 | 13,535,063 | 13,268,522
Class B voting common stock |  |  |  |  |  |  |
Common stock issued | 99,680 |  | 99,680 |  |  |  |
Common stock, shares outstanding | 99,680 |  | 99,680 |  |  |  |

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