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