Significant Customers (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 customer	Sep. 30, 2011
Revenue, Major Customer [Line Items]
Revenue, export sales percentage	84.00%	88.00%	86.00%	87.00%
Number of major customers			3
Juki [Member]
Revenue, Major Customer [Line Items]
Major customers, total revenue percentage			13.00%
Assembleon [Member]
Revenue, Major Customer [Line Items]
Major customers, total revenue percentage			13.00%
LaserTek [Member]
Revenue, Major Customer [Line Items]
Major customers, total revenue percentage			11.00%