INCOME TAXES (Detail Textuals) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Income Tax Disclosure [Abstract]
Increase to unrecognized tax position reserve relating to the prior year's state tax filings	$ 66,000
Commercial foreign sourced income tax rate	11.60%
Undistributed earnings of foreign subsidiaries	$ 18,300
Income Taxes [Line Items]
Deferred tax liabilities related to intangible assets	21,772	$ 23,631
Switzerland
Income Taxes [Line Items]
Deferred tax liabilities related to intangible assets	$ 14,300	$ 15,900