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Discontinued Operations, Sale of Cold-EEZE® Business - Schedule of Operating Results of Discontinued Operations (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Discontinued Operations and Disposal Groups [Abstract] |  |  |
Net sales | $ 4,687 | $ 16,808 | $ 18,087
Cost of sales | 2,036 | 7,738 | 6,741
Sales and marketing | 1,720 | 5,385 | 7,395
Administration | 350 | 2,329 | 4,719
Research and development | 51 | 218 | 738
Income (loss) from discontinued operations | $ 530 | $ 1,138 | $ (1,506)

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- Definition Amount of costs of goods sold attributable to disposal group, including, but not limited to, discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 + Details
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- Definition Amount of general and administrative expense attributable to disposal group, including, but not limited to, discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 + Details
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