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EMPLOYEE BENEFIT PLANS AND DEFERRED COMPENSATION ARRANGEMENTS (Details) |  | 12 Months Ended
--- | --- | ---
Oct. 28, 2017 USD ($) | Dec. 31, 2017 USD ($) item | Dec. 31, 2016 USD ($)
EMPLOYEE BENEFIT PLANS AND DEFERRED COMPENSATION ARRANGEMENTS |  |  |
Term of service for 401K participation |  | 3 months |
Company's contributions to the 401K plan |  | $ 1,700,000 | $ 1,700,000
Executive Deferred Compensation Arrangements |  |  |
EMPLOYEE BENEFIT PLANS AND DEFERRED COMPENSATION ARRANGEMENTS |  |  |
Employers contribution of incentive bonus (as a percent) |  | 25.00% |
Deferred plan liability |  | $ 2,400,000 | 2,000,000
2008 Salary Continuation Agreement |  |  |
EMPLOYEE BENEFIT PLANS AND DEFERRED COMPENSATION ARRANGEMENTS |  |  |
Deferred plan liability |  | 503,000 | $ 583,000
Annual compensation payment amount |  | $ 100,000 |
Contractual term |  | 10 years |
Commencement age |  | 65 years |
2017 Salary Continuation Agreement |  |  |
EMPLOYEE BENEFIT PLANS AND DEFERRED COMPENSATION ARRANGEMENTS |  |  |
Deferred plan liability |  | $ 32,000 |
Annual compensation payment amount | $ 200,000 |  |
Contractual term | 10 years |  |
Commencement age | 70 years |  |
Change of Control and Non-Competition Agreements | VB Texas, Inc. |  |  |
EMPLOYEE BENEFIT PLANS AND DEFERRED COMPENSATION ARRANGEMENTS |  |  |
Number of times of salary and average bonus | item |  | 2 |
Number of years preceding the change of control or involuntary termination |  | 3 years |
Aggregate amount |  | $ 2,500,000 |
Change of Control and Non-Competition Agreements | Executive Officers |  |  |
EMPLOYEE BENEFIT PLANS AND DEFERRED COMPENSATION ARRANGEMENTS |  |  |
Deferred plan liability |  | 2,200,000 |
Deferred compensation expense |  | $ 0 |

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