Basis of Presentation (Policies)	9 Months Ended
Oct. 31, 2015
Basis of Presentation
New Accounting Pronouncements [policy textblock]	Recently issued accounting pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued authoritative guidance under Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers. ASU 2014-09 supersedes existing revenue recognition requirements and provides a new comprehensive revenue recognition model that requires entities to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers, Deferral of the Effective Date, which defers the effective date of the new revenue recognition standard by one year. As a result, ASU 2014-09 is effective retrospectively for fiscal years and interim periods within those years beginning after December 15, 2017. Adoption is allowed by either the full retrospective or modified retrospective approach. The Company is currently evaluating which approach it will apply and the potential adoption impact on its consolidated financial statements. In November 2015, the FASB issued ASU No. 2015-17, Balance Sheet Classification of Deferred Taxes, which requires entities with a classified balance sheet to present all deferred tax assets and liabilities as noncurrent. ASU 2015-17 will be effective for annual reporting periods beginning after December 15, 2016, including interim periods within that annual period, with early adoption permitted. Adoption is allowed either prospectively to all deferred tax assets and liabilities or retrospectively to all periods presented. The Company is in the process of determining the date of adoption, as well as the impact of this accounting pronouncement on its consolidated financial statements.

Recently issued accounting pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued authoritative guidance under Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers. ASU 2014-09 supersedes existing revenue recognition requirements and provides a new comprehensive revenue recognition model that requires entities to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers, Deferral of the Effective Date, which defers the effective date of the new revenue recognition standard by one year. As a result, ASU 2014-09 is effective retrospectively for fiscal years and interim periods within those years beginning after December 15, 2017. Adoption is allowed by either the full retrospective or modified retrospective approach. The Company is currently evaluating which approach it will apply and the potential adoption impact on its consolidated financial statements.

In November 2015, the FASB issued ASU No. 2015-17, Balance Sheet Classification of Deferred Taxes, which requires entities with a classified balance sheet to present all deferred tax assets and liabilities as noncurrent. ASU 2015-17 will be effective for annual reporting periods beginning after December 15, 2016, including interim periods within that annual period, with early adoption permitted. Adoption is allowed either prospectively to all deferred tax assets and liabilities or retrospectively to all periods presented. The Company is in the process of determining the date of adoption, as well as the impact of this accounting pronouncement on its consolidated financial statements.