Property, Plant and Equipment (Detail Textuals) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 134,000	$ 119,000	$ 268,000	$ 238,000
Depreciation and amortization expense	171,000	155,000	340,000	308,000
CPG
Property, Plant and Equipment [Line Items]
Construction in progress	916,000		916,000		477,000
ATG
Property, Plant and Equipment [Line Items]
Construction in progress	916,000		916,000		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	2,747,000		2,747,000		2,682,000
Amortization expense	$ 33,000	$ 33,000	$ 65,000	$ 65,000