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Commitments and Contingencies (Details) (Technology Equipment [Member], USD $)	Apr. 30, 2012	Apr. 30, 2011
Technology Equipment [Member]
Capital Leased Assets [Line Items]
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	$ (46,000)	$ (16,000)
Capital Leased Assets, Gross	121,000	52,000
Capital Leases, Balance Sheet, Assets by Major Class, Net	$ 75,000	$ 36,000

Property, plant, or equipment held under lease agreements classified as an asset.

The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.