Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 61,960	$ 57,214
Accumulated depreciation	32,328	28,719
Property, plant and equipment, net	29,632	28,495
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	10,910	9,986
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 50,581	$ 46,759

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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