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Income Tax (Operating Loss Carryforward Expirations) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2032
Dec. 31, 2031
Dec. 31, 2030
Dec. 31, 2029
Dec. 31, 2028
Dec. 31, 2027
Dec. 31, 2026
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Operating Loss Carryforwards $ 10,786 $ 7,214 $ 6,868 $ 5,993 $ 6,964 $ 2,547 $ 2,240 $ 2,362 $ 2,082 $ 691 $ 4,604 $ 9,564 $ 3,316 $ 1,720 $ 6,314 $ 545 $ 140 $ 1,605 $ 1,060 $ 665 $ 77,280
U.S.
                                          
Operating Loss Carryforwards 2,313 3,408 1,836 1,971 1,719 1,700 1,213 2,362 2,082 691 748 779 783 519              
Noncapital Canada [Member]
                                          
Operating Loss Carryforwards 8,473 3,806 5,032 4,022 5,245 847 1,027                     889 725    
Mexico [Member]
                                          
Operating Loss Carryforwards                     3,856 8,735 2,505 1,138 6,230 533 125 322 124 282  
Barbados [Member]
                                          
Operating Loss Carryforwards                       50 28 63 84 12 8 9      
Indonesia [Member]
                                          
Operating Loss Carryforwards                                 $ 7 $ 385 $ 211 $ 383