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Stock Compensation - Director Deferred Compensation (Details) - Director - shares | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |
Beginning balance, Director Deferred Stock (in shares) | 142,913 |  |
New shares deferred (in shares) | 14,319 |  |
Issued (in shares) | (13,587) | (7,531) | (7,178)
Ending balance, Director Deferred Stock (in shares) | 143,645 | 142,913 |

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- Definition Deferred compensation arrangement shares added to deferred stock balance for compensation deferred during period. + References No definition available. + Details
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- Definition Number of common shares reserved for future issuance related to deferred compensation arrangements with individuals. + References No definition available. + Details
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- Definition Number of shares issued pursuant to the terms of a deferred compensation arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (l) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Details
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