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Preferred, Common Stock and Additional Paid in Capital - Share Re-purchase Plan (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 22 Months Ended | 29 Months Ended | 12 Months Ended
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Dec. 31, 2011 | Dec. 31, 2012 Reinstatement Of Share Repurchase Plan | Dec. 31, 2013 Treasury Stock | Dec. 31, 2012 Treasury Stock | Dec. 31, 2011 Treasury Stock
Share Re-purchase plan |  |  |  |  |
Share repurchase plan - authorized amount | $ 30,000 | $ 3,000 |  |  |
Share repurchase program - maximum share price |  | $ 19.5 |  |  |
Share repurchase plan - shares repurchased and cancelled |  |  | 0 | 61,730 | 0
Repurchase of common shares |  |  |  | 860 |
Share repurchase plan - remaining authorized amount |  |  |  | $ 2,140 |

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- Definition The maximum purchase price per share which has been authorized under the share repurchase plan. + References No definition available. + Details
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- Details
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- Definition Number of shares that have been repurchased and retired during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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- Definition Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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- Definition Amount of a stock repurchase plan authorized by an entity's Board of Directors. + References No definition available. + Details
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- Definition Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors. + References No definition available. + Details
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