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EMPLOYEE BENEFIT PLANS (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 USD ($) item | Dec. 31, 2017 USD ($)
Deferred Compensation Arrangements [Abstract] |  |
Deferred Compensation Arrangement with Individual, Compensation Expense | $ (13) | $ (12)
Deferred Compensation Arrangement with Individual, Recorded Liability | 12 | 24
Contribution expense | $ 812 | $ 765
Defined Contribution 401K Safe Harbor Plan [Member] |  |
Deferred Compensation Arrangements [Abstract] |  |
Matching contribution of first 3% of eligible employees' contributions (as a percent) | 100.00% |
Employer match of employee contributions as first eligible compensation (as a percent) | 3.00% |
Matching contribution of first 2% of eligible employees' contributions (as a percent) | 50.00% |
Employer match of employee contributions as next eligible compensation (as a percent) | 2.00% |
Elective deferrals and basic matching contribution vested (as a percent) | 100.00% |
Collective Bargaining Arrangement [Member] |  |
Deferred Compensation Arrangements [Abstract] |  |
Number of union locations where discretionary match continued | item | 2 |
Collective Bargaining Arrangement [Member] | Illinois |  |
Deferred Compensation Arrangements [Abstract] |  |
Matching contribution of first 4% of eligible employees' contributions (as a percent) | 50.00% |
Percentage of eligible employees' contributions matched by the company | 4.00% |
Collective Bargaining Arrangement [Member] | Pennsylvania |  |
Deferred Compensation Arrangements [Abstract] |  |
Matching contribution of first 3% of eligible employees' contributions (as a percent) | 100.00% |
Employer match of employee contributions as first eligible compensation (as a percent) | 3.00% |
Matching contribution of first 2% of eligible employees' contributions (as a percent) | 50.00% |
Employer match of employee contributions as next eligible compensation (as a percent) | 2.00% |

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- Definition Represents the number of union locations where the discretionary match continued for the collective bargaining arrangements. + References No definition available. + Details
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- Definition Represents the first level of employee contributions (percentage of compensation) which are matched by the employer. + References No definition available. + Details
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- Definition Represents the second level of employee contributions (percentage of compensation) which are matched by the employer. + References No definition available. + Details
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- Definition Represents the employer matching contribution of the first level of employee contributions. + References No definition available. + Details
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- Definition Represents the employer matching contribution of the second level of employee contributions. + References No definition available. + Details
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- Definition The compensation expense recognized during the period pertaining to the deferred compensation arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 + Details
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- Definition The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 + Details
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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
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