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Other Expense, Net (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Other Expense, Net |  |  |  |
Unrealized currency exchange loss (gain) | $ 1,100 | $ (625) | $ 74 | $ (27)
Realized currency exchange (gain) loss | (735) | 929 | 589 | 993
Unrealized (gain) loss from gold and silver rounds/bullion, net | 159 | 148 | 141 | (156)
Loss on disposal of fixed assets |  | 205 | 5 | 301
Other (income) expense | (14) | (48) | (21) | (38)
Total | $ 510 | $ 609 | $ 788 | $ 1,073

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- Definition Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64836518&loc=d3e30690-110894 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64836518&loc=d3e30700-110894 + Details
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