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Stockholders' Equity (Narrative) (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2020 | Dec. 31, 2019
Class of Stock [Line Items] |  |  |
Preferred Stock, Shares Authorized | 20,000,000 | 20,000,000 | 20,000,000
Preferred Stock, Par Value Per Share | $ 1.00 | $ 1.00 | $ 1.00
Preferred Stock, Liquidation Preference Per Share | $ 1,272.78 | $ 1,272.78 |
Common Class A [Member] |  |  |
Class of Stock [Line Items] |  |  |
Common Stock, Shares Authorized | 70,000,000 | 70,000,000 | 70,000,000
Common Stock, Par or Stated Value Per Share | $ 0.10 | $ 0.10 | $ 0.10
Common Stock, Shares, Issued | 11,320,689 | 11,320,689 | 8,347,427
Stock Issued During Period, Shares, New Issues | 2,537,500 |  |
Common Class B [Member] |  |  |
Class of Stock [Line Items] |  |  |
Common Stock, Shares Authorized | 30,000,000 | 30,000,000 | 30,000,000
Common Stock, Par or Stated Value Per Share | $ 0.10 | $ 0.10 | $ 0.10
Common Stock, Shares, Issued | 719,200 | 719,200 | 1,117,462
Preferred Series B [Member] |  |  |
Class of Stock [Line Items] |  |  |
Preferred Stock, Shares Issued | 104,574 | 104,574 | 104,574
Preferred stock | $ 4,600,000 | $ 4,600,000 | $ 4,600,000
Preferred Stock, Dividend Rate, Percentage |  | 7.50% |
Preferred Stock, Liquidation Preference, Value | $ 133,100,000 | $ 133,100,000 | $ 127,200,000

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- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: 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 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(d)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644 + Details
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