Income Taxes (Policies)	3 Months Ended
Apr. 30, 2016
Income Tax Disclosure [Abstract]
Income Tax, Policy [Policy Text Block]	The provision for income taxes is based on the current estimate of the annual effective tax rate and is adjusted as necessary for quarterly events.

- Definition

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.

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