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Shareholders' Equity Equity Plan (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Oct. 31, 2013
Employee Stock Option [Member]
2009 Equity Plan [Member]
Oct. 10, 2012
Employee Stock Option [Member]
2009 Equity Plan [Member]
Oct. 14, 2011
Employee Stock Option [Member]
2009 Equity Plan [Member]
Jan. 18, 2011
Employee Stock Option [Member]
2009 Equity Plan [Member]
Jun. 02, 2010
Employee Stock Option [Member]
2009 Equity Plan [Member]
Oct. 29, 2009
Employee Stock Option [Member]
2009 Equity Plan [Member]
May 09, 2009
Employee Stock Option [Member]
2009 Equity Plan [Member]
Oct. 10, 2012
Employee Stock Option [Member]
Non US Equity Plan [Member]
Oct. 14, 2011
Employee Stock Option [Member]
Non US Equity Plan [Member]
Jun. 02, 2010
Employee Stock Option [Member]
Non US Equity Plan [Member]
Oct. 29, 2009
Employee Stock Option [Member]
Non US Equity Plan [Member]
Dec. 31, 2013
ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Common Stock, Shares Authorized 500,000,000 500,000,000 2,600,000 450,000 2,375,000 1,775,000 1,375,000 975,000 380,000 570,000 570,000 870,000 470,000 500,000
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate                           15.00%
ESPP annual cap                           $ 25,000
percentage of stock closing price                           85.00%
percentage of ESPP closing price                           85.00%
Shares, Issued                           23,052
Shares, Outstanding                           476,948