Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 73,602	$ 61,960
Accumulated depreciation	36,454	32,328
Property, plant and equipment, net	37,148	29,632
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	469	469
Building [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	11,546	10,910
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 61,587	$ 50,581