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EMPLOYEE BENEFIT PLANS (Detail Textuals) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Jan. 31, 2017 | Jan. 31, 2016 | Jan. 31, 2015
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Non-discretionary matching contribution |  | 100.00% |  |
Percentage of employee's compensation matched by employer |  | 3.00% |  |
Employer matching percentage of employee contributions |  | 50.00% |  |
Percentage of additional employee's compensation matched by employer |  | 2.00% |  |
Defined contribution plan, matching contributions |  | $ 2,900,000 | $ 2,300,000 | $ 2,000,000
DKI |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Percentage of employee's compensation matched by employer |  | 7.00% |  |
Employer matching percentage of employee contributions |  | 50.00% |  |
Defined contribution plan, matching contributions | $ 52,000 |  |  |
Maximum | DKI |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Defined contribution plan, employee contribution percentage for which employer contributes a matching contribution |  | 3.50% |  |

X
- Definition Represents defined contribution plan additional maximum annual contributions per employee percent. + References No definition available. + Details
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- Definition Percentage Of Employer Contribution To Match Participant Contribution In Defined Contribution Plan + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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- Definition Percentage employer matches of the employee's percentage contribution matched. + References No definition available. + 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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- Details
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- Details
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