11. SEGMENT REPORTING (Tables)

12 Months Ended

Apr. 30, 2013

Segment Reporting [Abstract]

Segment information

Segment information is summarized as follows:

	2013			2012			2011
Contract manufacturing services revenue	$	21,333,000		$	14,783,000		$	8,502,000
Cost of contract manufacturing services		12,595,000			10,153,000			7,296,000
Gross profit	$	8,738,000		$	4,630,000		$	1,206,000
Revenue from products in research and development	$	350,000		$	450,000		$	4,990,000
Research and development expense		(24,306,000	)		(35,688,000	)		(29,462,000	)
Selling, general and administrative expense		(13,134,000	)		(11,462,000	)		(11,421,000	)
Other income (expense), net		268,000			(49,000	)		536,000
Loss on early extinguishment of debt		(1,696,000	)		–			–
Net loss	$	(29,780,000	)	$	(42,119,000	)	$	(34,151,000	)

Revenue generated from our products in our research and development segment was derived from the following sources:

	2013		2012		2011
Government contract revenue1 (see Note 2)	$	–	$	–	$	4,640,000
License revenue		350,000		450,000		350,000
Total	$	350,000	$	450,000	$	4,990,000

Customer Revenue

	2013	2012	2011
United States (customer A)	81%	44%	56%
United States (customer B)	17	-	-
Germany (one customer)	-	17	24
Denmark (one customer)	-	25	19
Other customers	2	14	1
Total	100%	100%	100%

Long-lived assets

Our long-lived assets consist of leasehold improvements, laboratory equipment, and furniture, fixtures, office equipment and software and are net of accumulated depreciation. Long-lived assets by segment consist of the following:

	2013		2012
Long-lived Assets, net:
Contract manufacturing services	$	2,039,000	$	2,080,000
Products in research and development		639,000		820,000
Total	$	2,678,000	$	2,900,000