Significant Accounting Policies (Exchange Rates) (Details)	Dec. 31, 2012	Dec. 31, 2011
Canadian Dollar [Member]
Description Of Business And Basis Of Presentation [Line Items]
Exchange rate	0.9949	1.0170
Euros [Member]
Description Of Business And Basis Of Presentation [Line Items]
Exchange rate	0.7584	0.7709
Polish Zloty [Member]
Description Of Business And Basis Of Presentation [Line Items]
Exchange rate	3.0996	3.4174