v2.4.0.6

Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | The components of accumulated other comprehensive income included in stockholders’ equity as of December 31, 2012 and 2011 are as follows (in thousands):
| Unrealized Gain (Loss) on Available for Sale Securities |  | Securities with Other-Than-Temporary Impairment Losses |  | Total
December 31, 2012 |  |  |  |  |
Net unrealized gains on securities available-for-sale | $ | 11,836 |  |  | $ | — |  |  | $ | 11,836 |
Securities with other-than-temporary impairment losses | — |  |  | (4,389 | ) |  | (4,389 | )
Tax benefit (expense) | (4,614 | ) |  | 1,711 |  |  | (2,903 | )
Balance at December 31, 2012 | $ | 7,222 |  |  | $ | (2,678 | ) |  | $ | 4,544 |
December 31, 2011 |  |  |  |  |
Net unrealized gains on securities available-for-sale | $ | 10,066 |  |  | $ | — |  |  | $ | 10,066 |
Securities with other-than-temporary impairment losses | — |  |  | (4,906 | ) |  | (4,906 | )
Tax benefit (expense) | (3,924 | ) |  | 1,912 |  |  | (2,012 | )
Balance at December 31, 2011 | $ | 6,142 |  |  | $ | (2,994 | ) |  | $ | 3,148 |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580 + Details
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