4. BALANCE SHEET COMPONENTS (Details 2) (USD $)	Jul. 31, 2014	Apr. 30, 2014
Balance Sheet Components Details 2
Laboratory equipment	$ 683,632	$ 683,632
Computer equipment and software	142,380	142,380
Office furniture and fixtures	130,192	130,192
Subtotal	956,204	956,204
Less: Accumulated depreciation and amortization	(853,610)	(831,830)
Property Plant and Equipment	$ 102,594	$ 124,374

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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