Company and Industry Information Major Customers (Details) - Customer Concentration Risk [Member]	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounts Receivable [Member] | Samsung [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage			14.00%
Accounts Receivable [Member] | Taiwan Semiconductor (TSMC) [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	22.00%	36.00%
Accounts Receivable [Member] | United Microelectronics Corporation [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	11.00%
Accounts Receivable [Member] | Powertech Technology, Inc. [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	19.00%
Accounts Receivable [Member] | Flash Forward [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	12.00%	19.00%
Accounts Receivable [Member] | Semiconductor Manufacturing North China Corporation SMNC [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	11.00%
Accounts Receivable [Member] | Global Foundaries [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage			13.00%
Total Sales Revenue [Member] | Siliconware Precision Industries Co. Ltd. [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage		21.00%
Total Sales Revenue [Member] | Taiwan Semiconductor (TSMC) [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	30.00%	13.00%
Total Sales Revenue [Member] | United Microelectronics Corporation [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	13.00%
Total Sales Revenue [Member] | Powertech Technology, Inc. [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	13.00%
Total Sales Revenue [Member] | Semiconductor Manufacturing North China Corporation SMNC [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	11.00%
Total Sales Revenue [Member] | Intel [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage		10.00%	18.00%