Share-Based Compensation Plans (Tables)

9 Months Ended

Jul. 31, 2012

Note 9. Share-Based Compensation Plans [Abstract]

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

Share-based compensation reflected in the consolidated statements of operations were as follows:

	Three Months Ended July 31,				Nine Months Ended July 31,
	2012		2011		2012		2011
Cost of product sales and revenues	$	153	$	201	$	369	$	604
Cost of research and development contracts	29		34		66		105
General and administrative expense	416		98		873		989
Research and development expense	76		108		208		349
Total share-based compensation	$	674	$	441	$	1,516	$	2,047

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following table summarizes stock option activity for the nine months ended July 31, 2012:

	Number of options		Weighted average option  price ($)
Outstanding at October 31, 2011	3,320,558		8.25
Granted	342,293		1.28
Cancelled	(506,045	)	11.42
Outstanding at July 31, 2012	3,156,806		7.05