Loss on Disposal of Subsidiaries (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Apr. 30, 2015	Apr. 30, 2014
Loss on Disposal of Subsidiaries [Abstract]
Business Exit Costs	$ 363us-gaap_BusinessExitCosts1	$ 0us-gaap_BusinessExitCosts1

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

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