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Commitments, Contingencies And Other Matters (Narrative) (Details) $ in Thousands, PLN in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) | Dec. 31, 2014 PLN | Dec. 31, 2014 USD ($) | Dec. 31, 2013 PLN | Dec. 31, 2013 USD ($) | Dec. 31, 2012 PLN | Dec. 31, 2012 USD ($) | Dec. 31, 2015 PLN item | Dec. 31, 2015 USD ($) item
Commitments and Contingencies [line items] |  |  |  |  |  |  |  |  |
Contingent liability |  |  | $ 3,560 |  |  |  |  |  | $ 2,180
Rental expenses | $ 900 |  | 800 |  | $ 800 |  |  |  |
Review Of Tax Year 2011 [Member] |  |  |  |  |  |  |  |  |
Commitments and Contingencies [line items] |  |  |  |  |  |  |  |  |
Paid to Polish IRS |  |  |  |  |  | PLN 0.1 | $ 100 |  |
Review Of Tax Period December 2007 To December 2008 [Member] |  |  |  |  |  |  |  |  |
Commitments and Contingencies [line items] |  |  |  |  |  |  |  |  |
Paid to Polish IRS |  |  |  | PLN 3.5 | 1,200 |  |  |  |
Review Of Tax Year 2009 [Member] |  |  |  |  |  |  |  |  |
Commitments and Contingencies [line items] |  |  |  |  |  |  |  |  |
Paid to Polish IRS |  | PLN 2.8 | 900 |  |  |  |  |  |
Review of Tax Year 2010 [Member] |  |  |  |  |  |  |  |  |
Commitments and Contingencies [line items] |  |  |  |  |  |  |  |  |
Contingent liability |  |  |  |  |  |  |  | PLN 8.6 | 2,200
Reduction to contingent liability |  |  |  |  |  |  |  | PLN 3.4 | $ 900
ZUS [Member] |  |  |  |  |  |  |  |  |
Commitments and Contingencies [line items] |  |  |  |  |  |  |  |  |
Insurance contribution percentage | 20.00% |  |  |  |  |  |  |  |
Insurance contribution | $ 1,200 |  | 1,500 |  | $ 1,000 |  |  |  |
401K Plan [Member] |  |  |  |  |  |  |  |  |
Commitments and Contingencies [line items] |  |  |  |  |  |  |  |  |
Contributed to plan | $ 100 |  | 100 |  |  |  |  |  |
Vesting period for plan | 6 years |  |  |  |  |  |  |  |
RSP And RPP Plans [Member] |  |  |  |  |  |  |  |  |
Commitments and Contingencies [line items] |  |  |  |  |  |  |  |  |
Contributed to plan | $ 100 |  | $ 100 |  |  |  |  |  |
Number of registered retirement plans in Canada | item |  |  |  |  |  |  |  | 2 | 2
Vesting period for plan | 2 years |  |  |  |  |  |  |  |

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