Property, Plant and Equipment (Details) - USD ($)	Sep. 30, 2016	Sep. 30, 2015
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 16,001,000	$ 15,086,000
Less accumulated depreciation	(8,778,000)	(8,424,000)
Property, Plant and Equipment, net	7,223,000	6,662,000
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	157,000	176,000
Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	3,429,000	3,607,000
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	11,530,000	10,270,000
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	832,000	980,000
Transportation equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 53,000	$ 53,000