Property, Plant and Equipment (Detail Textuals) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 115,000	$ 117,000	$ 383,000	$ 355,000
Depreciation and amortization expense	150,000	152,000	490,000	460,000
CPG
Property, Plant and Equipment [Line Items]
Construction in progress	1,702,000		1,702,000		477,000
ATG
Property, Plant and Equipment [Line Items]
Construction in progress	1,702,000		1,702,000		477,000
Land and building | Elma
Property, Plant and Equipment [Line Items]
Nominal amount of capital lease	5,000,000		5,000,000
Buildings
Property, Plant and Equipment [Line Items]
Accumulated amortization	2,779,000		2,779,000		2,682,000
Amortization expense	$ 32,000	$ 32,000	$ 97,000	$ 97,000