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v2.4.0.6

BENEFIT PLANS (Details Textual) | 12 Months Ended
--- | ---
Jan. 31, 2013
Minimum [Member] |
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent | 1.00%
Maximum [Member] |
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent | 15.00%

X
- Definition Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration