13. SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

12 Months Ended

Apr. 30, 2012

Quarterly Financial Information [Text Block]

13. SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

Selected quarterly financial information for each of the two most recent fiscal years is as follows:

	Quarter Ended
	April 30,			January 31,			October 31,			July 31,			April 30,			January 31,			October 31,			July 31,
	2012			2012			2011			2011			2011			2011			2010			2010
Net  revenues	$	2,065,000		$	3,281,000		$	4,232,000		$	5,655,000		$	2,729,000		$	2,883,000		$	4,671,000		$	3,209,000
Gross profit (loss) (a)	$	1,053,000		$	719,000		$	436,000		$	2,422,000		$	559,000		$	196,000		$	624,000		$	(173,000	)
Loss from operations	$	(10,890,000	)	$	(11,093,000	)	$	(12,036,000	)	$	(8,051,000	)	$	(9,954,000	)	$	(8,843,000	)	$	(8,378,000	)	$	(7,512,000	)
Net loss	$	(10,882,000	)	$	(11,090,000	)	$	(12,055,000	)	$	(8,092,000	)	$	(10,014,000	)	$	(8,929,000	)	$	(7,513,000	)	$	(7,695,000	)
Basic and diluted loss per common  share	$	(0.10	)	$	(0.13	)	$	(0.16	)	$	(0.11	)	$	(0.15	)	$	(0.14	)	$	(0.13	)	$	(0.14	)

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(a) Gross profit (loss) represents contract manufacturing revenue less cost of contract manufacturing.