Inventories (Tables)

9 Months Ended

Jul. 31, 2012

Inventories [Abstract]

Schedule of Inventory, Current [Table Text Block]

The components of inventory at July 31, 2012 and October 31, 2011 consisted of the following:

	July 31, 2012		October 31, 2011
Raw materials	$	18,642	$	18,303
Work-in-process (1)	30,353		21,798
Net Inventory	$	48,995	$	40,101

(1) Work-in-process includes the standard components of inventory that are used to build the typical modules or stack components that are intended to be used in future power plant orders. Included in Work-in-process as of July 31, 2012 is $9.9 million of completed standard components ready to be incorporated into power plants and deployed upon receipt of customer orders.