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STOCKHOLDERS' EQUITY (Common and Preferred Stock) (Details) | 9 Months Ended |
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Sep. 30, 2019 vote $ / shares shares | Dec. 31, 2018 $ / shares shares
Common Stock [Abstract] |  |
Maximum individual common stock ownership (in hundredths) | 9.80% |
Preferred Stock |  |
Preferred Stock [Abstract] |  |
Preferred shares authorized (in shares) | 8,990,000 |
Convertible Series AA Preferred Stock |  |
Preferred Stock [Abstract] |  |
Preferred shares authorized (in shares) | 1,000,000 |
Annual cash dividend rate (in hundredths) | 7.00% |
Liquidation preference per share (in dollars per share) | $ / shares | $ 25.00 |
Initial conversion price (in dollars per share) | $ / shares | $ 25.00 |
Total number of common shares issuable upon conversion of outstanding shares of preferred stock (in shares) | 2 |
Common Class A |  |
Common Stock [Abstract] |  |
Common stock, shares authorized (in shares) | 100,000,000 | 100,000,000
Par value (in dollars per share) | $ / shares | $ 0.01 | $ 0.01
Common stock shares issued (in shares) | 17,690,378 | 17,721,422
Number of votes holder is entitled to | vote | 1 |
Common Class B |  |
Common Stock [Abstract] |  |
Common stock, shares authorized (in shares) | 1,000 |
Par value (in dollars per share) | $ / shares | $ 0.01 |
Common stock shares issued (in shares) | 0 |
Number of votes holder is entitled to | vote | 1 |

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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 Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + 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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