Property and Equipment (Tables)

3 Months Ended

Jul. 31, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

Property and equipment consisted of the following (in thousands):

	July 31,		April 30,
	2014		2014
	(unaudited)
Furniture and fixtures	$	70	$	69
Computer equipment and software		669		655
Laboratory equipment		314		296
Leasehold improvements		2		2
Total property and equipment		1,055		1,022
Less: Accumulated depreciation		(644)		(588)
Property and equipment, net	$	411	$	434