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Share Capital, textual 2 (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Audit Committee Chairman |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | 62,717 | 17,964 | 6,890
Share-based Compensation Arrangement by Share-based Payment Award, Description | Pursuant to an arrangement approved by the Company’s shareholders’ and the corporate governance, nominating and compensation committee effective July 1, 2008, the audit committee chairman receives the equivalent of $15 every quarter, payable in arrears in the form of newly issued common stock of the Company as part compensation for services rendered as audit committee chairman. The number of shares to be issued is determined based on the closing price of the Company’s common stock on the last trading day prior to the end of each quarter in which services were provided and are issued as soon as practicable following the end of the quarter. |  |
Share Based Compensation Value Of Transaction | $ 15,000 |  |
Independent directors |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | 62,717 | 17,964 | 6,892
Share-based Compensation Arrangement by Share-based Payment Award, Description | Pursuant to an arrangement approved by the Company’s shareholders and the corporate governance, nominating and compensation committee, effective January 1, 2010, the independent directors of the Company other than the audit committee chairman each receive the equivalent of $7.5 every quarter, payable in arrears in the form of newly issued common stock of the Company as part compensation for services rendered as independent directors. The number of shares to be issued is determined as noted above. |  |
Share Based Compensation Value Of Transaction | $ 7,500 |  |

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- Definition General descriptive information regarding an arrangement under which employees and directors receive: (a) awards of equity shares, equity share options, or other equity instruments; or (b) the entity incurs liabilities to them: (1) in amounts based, at least in part, on the price of the entity's shares or other equity instruments; or (2) that require or may require settlement by issuance of the entity's shares. Such an arrangement is usually provided to employees and directors to compensate them, provide performance incentives to them, and to attract or retain their services. May also include pertinent information particular to a plan that is not elsewhere specified in the taxonomy. + 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 (a) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 + Details
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- Definition Number of share instruments newly issued under a share-based compensation plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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