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INCOME TAXES (Detail Textuals) - USD ($) | 12 Months Ended
--- | ---
Jan. 31, 2018 | Jan. 31, 2017 | Jan. 31, 2016
Income Taxes [Line Items] |  |  |
US corporate income tax rate | 33.80% | 35.00% | 35.00%
Corporate income tax rate effective in 2018 | 21.00% |  |
Deferred tax liabilities related to intangible assets | $ 22,804,000 | $ 21,347,000 |
Valuation allowance of deferred tax assets | 1,600,000 |  |
Undistributed earnings of foreign subsidiaries | 0 |  |
Decrease in unrecognized tax position reserve for current year accrual of interest and penalties | $ 1,000,000 |  |
Commercial foreign sourced income tax rate | 11.60% |  |
Unrecognized tax benefits (inclusive of tax, interest and penalties) | $ 429,000 |  |
Provisional charge | 7,700,000 |  |
Provisional charge related to the repatriation tax | 3,300,000 |  |
Provisional charge related to tax expense | $ 4,400,000 |  |
Maximum |  |  |
Income Taxes [Line Items] |  |  |
US corporate income tax rate | 35.00% |  |
Switzerland |  |  |
Income Taxes [Line Items] |  |  |
Deferred tax liabilities related to intangible assets | $ 15,800,000 | $ 13,800,000 |

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- Definition Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=96869850&loc=d3e28680-109314 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 + Details
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