3. BALANCE SHEET COMPONENTS (Details Narrative) (Property Plant And Equipment, USD $)	3 Months Ended		6 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2011
Property Plant And Equipment
Depreciation and amortization expense	$ 23,000	$ 47,000	$ 47,000	$ 97,000