Property, Plant, and Equipment, net (Schedule of Components of Property, Plant, and Equipment, Net) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Sep. 30, 2012
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	$ 50,461	$ 47,896
Land
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	1,502	1,502
Building and Improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	18,760	19,065
Equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	16,632	15,088
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	112	206
Computer hardware and software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	937	1,017
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	3,207	3,598
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	$ 9,311	$ 7,420