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Note 18 - Deferred Tax Charge	12 Months Ended
Note 18 - Deferred Tax Charge	Jan. 31, 2017
Notes to Financial Statements
Deferred Tax Charge [Text Block]	Note 18 – Deferred Tax Charge During 2016, we had internal re-organizations related to intellectual property in some of our subsidiaries. The tax impact related to the reorganizations has been recorded as a deferred charge and is being amortized to income tax expense over the remaining estimated useful life of the intellectual property. Deferred tax charges are amortized to income tax expense over a period of 3 to 8 years.