Summary of Significant Accounting Policies (Property, Plant and Equipment) (Details) (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Property, Plant and Equipment [Line Items]
Depreciation	$ 2,200,000	$ 2,100,000	$ 1,300,000
Property, plant and equipment, gross	23,206,000	22,073,000
Accumulated depreciation and amortization	(10,819,000)	(9,393,000)
Property, plant and equipment - net	12,387,000	12,680,000
Equipment, Machinery And Leasehold Improvements [Member] | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	3 years
Equipment, Machinery And Leasehold Improvements [Member] | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	7 years
Land, building and leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	10,476,000	10,636,000
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	20 years
Equipment and machinery [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	7,272,000	6,003,000
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 5,458,000	$ 5,434,000
Furniture and fixtures [Member] | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	5 years
Furniture and fixtures [Member] | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	10 years