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Accumulated Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | The following table provides information on the changes in the components of accumulated other comprehensive income (loss) for the three months ended March 31, 2013 and 2012.
(Dollars in thousands) |  | Unrealized holding gains (losses) on available for sale securities |  |  | Unrealized holding gains (losses) on cash flow hedging activities |  |  | Accumulated other comprehensive income (loss) |
Balance, December 31, 2012 |  | $ | 1,894 |  |  | $ | (1,186 | ) |  | $ | 708 |
Unrealized holding gains (losses) |  |  | (144 | ) |  |  | 248 |  |  |  | 104 |
Balance, March 31, 2013 |  | $ | 1,750 |  |  | $ | (938 | ) |  | $ | 812 |
Balance, December 31, 2011 |  | $ | 1,370 |  |  | $ | (3,059 | ) |  | $ | (1,689 | )
Unrealized holding gains |  |  | 228 |  |  |  | 214 |  |  |  | 442 |
Balance, March 31, 2012 |  | $ | 1,598 |  |  | $ | (2,845 | ) |  | $ | (1,247 | )

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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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