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Consolidated Statements of Stockholders' Equity (Parenthetical) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Net of preferred dividends | $ 345 us-gaap_RedeemablePreferredStockDividends | $ 342 us-gaap_RedeemablePreferredStockDividends
Retained Earnings |  |
Net of preferred dividends | $ 345 us-gaap_RedeemablePreferredStockDividends / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ 342 us-gaap_RedeemablePreferredStockDividends / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember

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- Definition Dividends paid to preferred stock holders that is redeemable solely at the option of the issuer. + 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 FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1377-109256 + Details
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