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Accumulated Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2012
Accumulated Other Comprehensive Income and Rights Offering of Common Stock [Abstract] |
Schedule of changes in component of accumulated other comprehensive income (loss) |
|  | Net Unrealized Gains (Losses) on Securities |  |  | Adjustments Related to Pension Benefits |  |  | Accumulated Other Comprehensive Income (Loss) |
Balance at December 31, 2009 |  | $ | 1,258 |  |  | $ | (593 | ) |  | $ | 665 |
Net unrealized losses on investment securities (net of tax, $146) |  |  | (286 | ) |  |  | — |  |  |  | (286 | )
Reclassification adjustment (net of tax, $2) |  |  | 5 |  |  |  | — |  |  |  | 5 |
Unrealized pension plan loss (net of tax, $129) |  |  | — |  |  |  | (250 | ) |  |  | (250 | )
Balance at December 31, 2010 |  |  | 977 |  |  |  | (843 | ) |  |  | 134 |
Net unrealized gains on investment securities |  |  | 1,774 |  |  |  | — |  |  |  | 1,774 |
Reclassification adjustment |  |  | (59 | ) |  |  | — |  |  |  | (59 | )
Unrealized pension plan loss |  |  | — |  |  |  | (898 | ) |  |  | (898 | )
Deferred tax adjustment |  |  | 474 |  |  |  | (434 | ) |  |  | 40 |
Balance at December 31, 2011 |  |  | 3,166 |  |  |  | (2,175 | ) |  |  | 991 |
Net unrealized losses on investment securities |  |  | (111 | ) |  |  | — |  |  |  | (111 | )
Reclassification adjustment |  |  | 1,285 |  |  |  | — |  |  |  | (1,285 | )
Unrealized pension plan loss |  |  | — |  |  |  | (454 | ) |  |  | (454 | )
Balance at December 31, 2012 |  | $ | 1,770 |  |  | $ | (2,629 | ) |  | $ | (859 | )

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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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