Segment Information and Foreign Operations - Concentration of Credit Risk (Details) - customer	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Revenue [Member]
Revenue, Major Customer [Line Items]
Number of customers representing significant share	1	2	2	0
Accounts Receivable [Member]
Revenue, Major Customer [Line Items]
Number of customers representing significant share			2		1
Landmark [Member] | Revenue [Member]
Revenue, Major Customer [Line Items]
Percentage share generated by major customers		14.00%	10.00%	10.00%
IQE Group Customer [Member] | Revenue [Member]
Revenue, Major Customer [Line Items]
Percentage share generated by major customers	12.00%	12.00%	11.00%
Major Customer One [Member] | Accounts Receivable [Member]
Revenue, Major Customer [Line Items]
Percentage share generated by major customers			14.00%		22.00%
Major Customer Two [Member] | Accounts Receivable [Member]
Revenue, Major Customer [Line Items]
Percentage share generated by major customers			10.00%
Top Five Major Customers [Member] | Revenue [Member]
Revenue, Major Customer [Line Items]
Number of customers representing significant share	5	5	5	5
Percentage share generated by major customers	38.00%	45.00%	40.00%	39.00%