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EMPLOYEE BENEFIT PLANS (Details Textual) | 12 Months Ended
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Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined Benefit Plan, Future Amortization of Gain (Loss) | [1],[2] | $ 946,000 | $ 813,000 |
Defined Contribution Plan Maximum Annual Contribution Per Union Employee Percent |  | 4.00% | 4.00% | 4.00%
Defined Contribution Plan Amount Of Entity Common Stock And Securities Held |  | $ 1,400,000 |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Match |  |  | 6.00% | 2.00%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent |  | 4.00% | 3.00% | 1.00%
Defined Contribution Plan, Cost Recognized |  | $ 433,000 | $ 387,000 |
Pension Plans, Defined Benefit [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined Benefit Plan Minimum Number Of Annual Employee Hours |  | 1,000 |  |
Defined Benefit Plan, Amount of Employer and Related Party Securities Included in Plan Assets |  | $ 666,000 |  |
Defined Benefit Plan Maximum Percent Of Assets Comprised Of Entity Common Stock |  | 10.00% |  |
Defined Benefit Plan Vesting Period |  | 5 years |  |
Defined Benefit Plan, Future Amortization of Gain (Loss) |  | $ 1,051,000 |  |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets |  | 8.00% | 8.00% | 8.00%
Defined Benefit Plan Percent Of Assets Comprised Of Entity Common Stock |  | 2.90% |  |
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year |  | $ 3,000,000 |  |
Pension Plans, Defined Benefit [Member] | Equity Securities [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined Benefit Plan, Target Plan Asset Allocations |  | 60.00% |  |
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum |  | 50.00% |  |
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum |  | 60.00% |  |
Pension Plans, Defined Benefit [Member] | Debt Securities [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum |  | 40.00% |  |
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum |  | 50.00% |  |
[1] | Amounts in parentheses indicate credits.
[2] | These accumulated other comprehensive loss components are included in the computation of net periodic benefit cost (see Note 14 for additional details).

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- Definition The amount of employer securities or securities of parties related to the employer that are included in plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (n) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Expected Long-Term Rate of Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512046 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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