Business Description and Summary of Significant Accounting Policies (Detail Textuals 1)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Concentration Risk [Line Items]
Concentration risk, benchmark description	No other customers of the ATG or CPG represented more than 10% of the Company's consolidated revenues in either of these years.
Sales Revenue | Customer Concentration Risk | Three Customers
Concentration Risk [Line Items]
Concentration risk, percentage	49.00%	61.00%
Sales Revenue | Advanced technology products | Customer Concentration Risk | Prime or subcontractors
Concentration Risk [Line Items]
Concentration risk, percentage	9.00%	9.00%
Sales Revenue | Advanced technology products | Customer Concentration Risk | Three Customers
Concentration Risk [Line Items]
Concentration risk, benchmark description	More than 10%