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SHAREHOLDERS EQUITY (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Class of Stock [Line Items] |  |  |
Quarterly cash payment that may be made under Dividend Reinvestment Program | $ 200 |  |
Percent of fair market value which shares may be purchased at under the DRIP | 97.00% |  |
Fair market value discount | 3.00% |  |
Sale of shares (dividend reinvestment program) | $ 36,588 | $ 22,461 | $ 13,648
Shares purchased under voluntary purchase | 1,202,180 | 1,134,068 |
Common Stock [Member] |  |  |
Class of Stock [Line Items] |  |  |
Sale of shares (dividend reinvestment program), shares | 1,204,710 | 1,137,998 | 665,654
Sale of shares (dividend reinvestment program) | $ 1,004 | $ 948 | $ 555

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- Definition Percent of fair market value which shares may be purchased at under the DRIP program. + References No definition available. + Details
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- Definition Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity. Specific to the voluntary purchase portion of activity. + References No definition available. + Details
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- Definition Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644 + Details
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