Property, Plant and Equipment (Detail Textuals) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Depreciation	$ 107,000	$ 106,000	$ 334,000	$ 323,000
Depreciation and amortization	141,000	139,000	437,000	427,000
Buildings
Property, Plant and Equipment [Line Items]
Accumulated amortization	2,520,000		2,520,000		2,423,000
Amortization	32,000	32,000	97,000	97,000
Machinery and equipment
Property, Plant and Equipment [Line Items]
Amortization	$ 0	$ 21,000	$ 42,000	$ 63,000