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SHARE-BASED COMPENSATION PLAN (Details) $ / shares in Units, $ in Millions |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Aug. 05, 2011 shares | Feb. 23, 2011 shares | Dec. 31, 2017 USD ($) Employee $ / shares shares | Dec. 31, 2016 USD ($) $ / shares shares | Dec. 31, 2015 USD ($) shares | Dec. 31, 2014 $ / shares shares | Dec. 31, 2011 shares | Dec. 31, 2013 shares
Employees [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares repurchased during the period (in shares) |  |  | 13,000 | 13,500 |  |  |  |
Restricted Stock Awards [Member] | Employees [Member] |  |  |  |  |  |  |  |
Restricted shares - Employees and Non-Employees [Roll Forward] |  |  |  |  |  |  |  |
Non-vested at beginning of period (in shares) |  |  | 157,165 |  |  |  |  |
Granted during the year (in shares) |  |  | 4,500 |  |  |  |  |
Vested during the year (in shares) |  |  | (10,000) |  |  |  |  |
Forfeited during the year (in shares) |  |  | (13,000) |  |  |  |  |
Non-vested at end of period (in shares) |  |  | 138,665 | 157,165 |  |  |  |
Weighted-average grant-date fair value - Employees [Abstract] |  |  |  |  |  |  |  |
Non-vested at beginning of period (in dollars per share) | $ / shares |  |  | $ 13.75 |  |  |  |  |
Granted during the year (in dollars per share) | $ / shares |  |  | 9.13 |  |  |  |  |
Vested during the year (in dollars per share) | $ / shares |  |  | 14.65 |  |  |  |  |
Forfeited during the year (in dollars per share) | $ / shares |  |  | 13.54 |  |  |  |  |
Non-vested at end of period (in dollars per share) | $ / shares |  |  | $ 13.55 | $ 13.75 |  |  |  |
2011 Equity Incentive Plan [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting requirement lifted for restricted shares (in shares) |  |  |  |  |  |  |  | 174,000
Shares available for future issuance (in shares) |  |  |  |  | 137,665 |  |  |
Total compensation cost for the period | $ |  |  | $ 0.5 | $ 0.4 | $ 0.4 |  |  |
Number of employees to whom restricted common shares were allocated | Employee |  |  | 26 |  |  |  |  |
Treasury shares (in shares) |  |  | 22,000 |  |  |  |  |
Restricted shares - Employees and Non-Employees [Roll Forward] |  |  |  |  |  |  |  |
Granted during the year (in shares) |  |  |  |  |  |  | 400,000 |
2011 Equity Incentive Plan [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Share-based compensation arrangement shares cliff vesting period |  |  | 4 years |  |  |  |  |
2011 Equity Incentive Plan [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Share-based compensation arrangement shares cliff vesting period |  |  | 5 years |  |  |  |  |
2011 Equity Incentive Plan [Member] | Restricted Stock Awards [Member] | Employees and Non Employees [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Share-based compensation arrangement shares cliff vesting period |  |  | 4 years |  |  |  |  |
Common shares repurchased at fair value (in shares) |  |  |  |  |  | 33,000 |  |
Fair value of shares issued to manager (in dollars per share) | $ / shares |  |  |  |  |  | $ 9.84 |  |
Unrecognized compensation cost related to unvested restricted stock | $ |  |  | $ 0.8 |  |  |  |  |
Weighted average period to recognize the unrecognized compensation cost |  |  | 1 year 8 months 12 days |  |  |  |  |
Restricted shares - Employees and Non-Employees [Roll Forward] |  |  |  |  |  |  |  |
Granted during the year (in shares) | 74,000 | 326,000 |  |  |  |  |  |

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