Summary of Significant Accounting Policies (Details Textual) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019 USD ($) ft² shares	Jun. 30, 2018 USD ($) shares	Jun. 30, 2019 USD ($) ft² shares	Jun. 30, 2018 USD ($) shares	Dec. 31, 2018 USD ($)
Summary of Significant Accounting Policies (Textual)
Asset impairment charges
Revenue recognized		$ 56,000		$ 56,000
Total value of the contract					4,700
Gain on sale or disposal of equipment and consumable assets				1,600,000
Total net book value		$ 1,500,000		$ 1,500,000
Government contract remaining payment less than amount	$ 200,000		$ 200,000
Options exercisable | shares	32,126	27,000	32,126	27,000
Accrued warranty reserve	$ 3,000		$ 3,000		$ 8,000
consumable assets the amount	$ 76,000		$ 151,000
Malaysia [Member]
Summary of Significant Accounting Policies (Textual)
Area of land | ft²	65,000		65,000
Net book value of furnaces		$ 131,000		$ 131,000