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Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Equity, Class of Treasury Stock [Line Items] |  |
Dividend payment from cash on hand | $ 3,408 | $ 3,295
Series A Junior Participating Preferred Stock [Member] |  |
Equity, Class of Treasury Stock [Line Items] |  |
Price of Rights per unit | $ 33.33 |

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- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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