Summary of Significant Accounting Policies (Property, Plant and Equipment) (Details) (USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Property, Plant and Equipment [Line Items]
Depreciation	$ 1,700,000	$ 2,000,000	$ 2,200,000
Property, plant and equipment, gross	24,056,000	24,275,000
Accumulated depreciation and amortization	(14,304,000)	(13,209,000)
Property, plant and equipment - net	9,752,000	11,066,000
Equipment, Machinery And Leasehold Improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	3 years
Equipment, Machinery And Leasehold Improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	7 years
Land, building and leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	10,414,000	10,960,000
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	20 years
Equipment and machinery
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8,189,000	7,630,000
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 5,453,000	$ 5,685,000
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	5 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	10 years