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Shareholders Equity (Narrative) (Details) - $ / shares | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Shareholders Equity [Line Items] |  |  |
Capital shares authorized | 50,210,000 |  |
Common stock, shares authorized | 50,000,000 | 50,000,000 |
Common stock, par value | $ 0.01 | $ 0.01 |
Preferred stock, shares authorized | 210,000 |  |
Preferred stock, par value | $ 100 |  |
Preferred stock, shares issued | 173,282 | 173,282 |
Preferred stock, shares outstanding | 173,282 | 173,282 |
Preferred Class A [Member] |  |  |
Shareholders Equity [Line Items] |  |  |
Preferred stock, shares authorized | 10,000 |  |
Preferred Class B [Member] |  |  |
Shareholders Equity [Line Items] |  |  |
Preferred stock, shares authorized | 200,000 |  |
Series A 3% Preferred Stock [Member] |  |  |
Shareholders Equity [Line Items] |  |  |
Preferred stock, shares authorized | 1,533 | 1,533 |
Preferred stock, par value | $ 100 | $ 100 |
Preferred stock, shares issued | 1,435 | 1,435 |
Preferred stock, shares outstanding | 1,435 | 1,435 |
Preferred stock, dividend percentage | 3.00% | 3.00% | 3.00%
Preferred stock, dividend per share | $ 3.00 |  |
Series B-1 8.48% Preferred Stock [Member] |  |  |
Shareholders Equity [Line Items] |  |  |
Preferred stock, shares authorized | 200,000 | 200,000 |
Preferred stock, par value | $ 100 | $ 100 |
Preferred stock, shares issued | 171,847 | 171,847 |
Preferred stock, shares outstanding | 171,847 | 171,847 |
Preferred stock, dividend percentage | 8.48% | 8.48% | 8.48%
Preferred stock, dividend per share | $ 8.48 |  |

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- Definition Number of authorized capital units or capital shares. This element is relevant to issuers of face-amount certificates and registered investment companies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04.16(a)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 + Details
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- Definition Face amount or stated value per share of common stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The amount per share used to calculated dividend payments on preferred stock. + References No definition available. + Details
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- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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