STOCK-BASED COMPENSATION PLANS (Details) - Stock Options [Member] | 3 Months Ended | 9 Months Ended | 12 Months Ended |
Sep. 30, 2016USD ($)Administrator$ / sharesshares | Sep. 30, 2015 | Sep. 30, 2016USD ($)Administrator$ / sharesshares | Sep. 30, 2015USD ($)$ / shares | Dec. 31, 2015USD ($)$ / sharesshares |
Fair value assumptions [Abstract] | | | | | | | |
Expected life | [2] | 0 years | [1] | 3 years 3 months | 3 years 3 months | 3 years 3 months | |
Risk-free interest rate | [3] | 0.00% | [1] | 1.00% | 1.21% | 1.00% | |
Expected volatility | [4] | 0.00% | [1] | 35.00% | 39.00% | 35.00% | |
Expected dividend yield | | 0.00% | [1] | 6.93% | 7.81% | 6.93% | |
Expected forfeiture | [5] | 0.00% | [1] | 27.00% | 27.00% | 27.00% | |
Options outstanding [Roll Forward] | | | | | | | |
Outstanding, beginning balance (in shares) | shares | | | | | 455,666 | | |
Granted (in shares) | shares | | 0 | | | 95,000 | | |
Exercised (in shares) | shares | | 0 | | | | | |
Cancelled (in shares) | shares | | | | | (41,666) | | |
Outstanding, ending balance (in shares) | shares | | 509,000 | | | 509,000 | | 455,666 |
Exercisable (in shares) | shares | | 324,589 | | | 324,589 | | |
Options weighted average exercise price [Roll Forward] | | | | | | | |
Outstanding, beginning balance (in dollars per share) | | | | | $ 16.82 | | |
Granted (in dollars per share) | | | | | 10.11 | | |
Cancelled (in dollars per share) | | | | | 12.69 | | |
Outstanding, ending balance (in dollars per share) | | $ 15.91 | | | 15.91 | | $ 16.82 |
Exercisable (in dollars per share) | | $ 17.76 | | | $ 17.76 | | |
Options, additional disclosures [Abstract] | | | | | | | |
Outstanding, weighted average remaining contractual term | | | | | 3 years 8 months 12 days | | 4 years 2 months 12 days |
Outstanding, aggregate intrinsic value | $ | | $ 968,000 | | | $ 968,000 | | $ 0 |
Exercisable, weighted average remaining contractual term | | | | | 2 years 6 months | | |
Exercisable, aggregate intrinsic value | $ | | 160,764,000 | | | $ 160,764,000 | | |
Weighted average grant date fair value of options (in dollars per share) | | | | | | $ 1.81 | |
Net cash proceeds from the exercise of stock options | $ | | | | | | $ 8,000 | |
Income tax effect | $ | | | | | | (5,000) | |
Intrinsic value | $ | | | | | | $ 11,000 | |
Total unrecognized compensation expense | $ | | $ 182,000 | | | $ 182,000 | | |
Weighted average period for recognition | | | | | 2 years 2 months 23 days | | |
Minimum [Member] | | | | | | | |
Range of Exercise Prices [Abstract] | | | | | | | |
Outstanding, beginning of period (in dollars per share) | | | | | $ 12.55 | | |
Granted (in dollars per share) | | | | | 10.04 | | |
Cancelled (in dollars per share) | | | | | 10.04 | | |
Outstanding, end of period (in dollars per share) | | $ 10.04 | | | 10.04 | | $ 12.55 |
Exercisable (in dollars per share) | | 12.55 | | | 12.55 | | |
Maximum [Member] | | | | | | | |
Range of Exercise Prices [Abstract] | | | | | | | |
Outstanding, beginning of period (in dollars per share) | | | | | 19.75 | | |
Granted (in dollars per share) | | | | | 11.11 | | |
Cancelled (in dollars per share) | | | | | 16.50 | | |
Outstanding, end of period (in dollars per share) | | 19.75 | | | 19.75 | | $ 19.75 |
Exercisable (in dollars per share) | | $ 19.75 | | | $ 19.75 | | |
2005 Plan [Member] | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | |
Shares available for issuance (in shares) | shares | | 0 | | | 0 | | |
Vested options (in shares) | shares | | 324,589 | | | 324,589 | | |
Unvested options (in shares) | shares | | 103,411 | | | 103,411 | | |
2015 Equity Incentive Plan [Member] | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | |
Shares available for issuance (in shares) | shares | | 119,000 | | | 119,000 | | |
Minimum number of plan administrators | Administrator | | 2 | | | 2 | | |
Unvested options (in shares) | shares | | 81,000 | | | 81,000 | | |
Maximum number of shares of Common Stock that can be delivered under the plan (in shares) | shares | | 200,000 | | | 200,000 | | |
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[1] | The Company did not issue any options during the quarter ended September 30, 2016. | |
[2] | The expected life, in years, of stock options is estimated based on historical experience. | |
[3] | The risk-free interest rate is based on U.S. Treasury bills whose term is consistent with the expected life of the stock options. | |
[4] | The expected volatility is estimated based on historical and current stock price data for the Company. | |
[5] | Forfeitures are estimated based on historical experience. | |