Summary of Significant Accounting Policies (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018 USD ($) ft² shares	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) ft² shares	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Summary of Significant Accounting Policies (Textual)
Asset impairment charges					$ 1,000
Revenue recognized	$ 56	$ 273	$ 56	$ 301
Total value of the contract	4,700		4,700
Value of contract recorded			4,700
Estimated contract value					243
Gain on disposal of assets and consumable assets			2,200
Total net book value	1,600		1,600
Additional impairment charges					$ 4,000
Government contract remaining payment less than amount	200		200
Net book value of furnaces	$ 236		$ 236
Options exercisable | shares	26,812		26,812
Lllinois [Member]
Summary of Significant Accounting Policies (Textual)
Area of land | ft²	134,400		134,400
Gain on disposal of assets and consumable assets			$ 504
Total net book value	$ 5,900		5,900
Selling price of property			6,700
Realized net proceeds			6,400
Purchase price of property			$ 2,300
Malaysia [Member]
Summary of Significant Accounting Policies (Textual)
Area of land | ft²	65,000		65,000
Total net book value	$ 131		$ 131