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Financial Instruments (Details) - Schedule of Notional Amounts and fair Values (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Jan. 31, 2014
Financial Instruments (Details) - Schedule of Notional Amounts and fair Values [Line Items]
Interest rate swap	$ 747	$ 1,141
Interest Rate Swap [Member]
Financial Instruments (Details) - Schedule of Notional Amounts and fair Values [Line Items]
Interest rate swap	32,300
Interest rate swap	$ 747

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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