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Sale Of Assets (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	9 Months Ended
	May 22, 2013	Jan. 31, 2014	Apr. 30, 2013
Sale Of Assets [Abstract]
Proceeds from assets held for sale	$ 400	$ 400
Assets held for sale			926
Liabilities held for sale			$ 526

Liability (such as a mortgage) related to a disposal group that is held for sale and anticipated to be sold in less than one year. The liability is expected to be discharged as part of the plan of sale for the asset.

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- Definition

The cash inflow from the sale of other tangible or intangible assets used to produce goods or deliver services not otherwise defined in the taxonomy.

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