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Segment Information - Narrative (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
segment
country
Sep. 30, 2015
USD ($)
Segment Reporting Information [Line Items]        
Number of operating segments | segment     4  
Number of reportable segments | segment     3  
Net revenues | $ $ 28,497 $ 31,116 $ 88,793 $ 79,774
International Markets        
Segment Reporting Information [Line Items]        
Net revenues | $ $ 27,700 $ 27,300 $ 86,500 $ 62,200
International Markets | Agel | Nutritional and wellness        
Segment Reporting Information [Line Items]        
Number of countries with sales presence | country     50  
Net Revenues        
Segment Reporting Information [Line Items]        
Net revenues, concentration risk percentage 81.30% 74.00% 81.10% 67.70%
Consolidated Revenues        
Segment Reporting Information [Line Items]        
Net revenues, concentration risk percentage     75.00%