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EMPLOYEE SHARE PURCHASE AND DEFERRED SHARE PLAN (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Employee share purchase discount rate (in percent) | 15.00% |  |
Employee share purchase maximum purchase amount | $ 25,000 |  |
Employee share purchase compensation expense | 20,000 | $ 20,000 | $ 10,000
Trustee [Member] | Deferred Compensation [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Deferred compensation arrangement compensation expense | $ 100,000 |  |
Common Stock [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Employee share purchase (in shares) | 3,761 | 4,668 | 3,678

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