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Other Assets (Schedule of Other Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |
Patents, at cost | $ 6,955 | $ 6,814
Accumulated amortization | (4,491) | (4,202)
Deposits on capital items | 12,106 | 7,958
Other | 3,093 | 3,169
Other assets | $ 17,663 | $ 13,739

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Gross carrying amount before accumulated amortization as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner of the patent to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of other miscellaneous assets. + References No definition available. + Details
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