Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v3.4.0.3
Segment Information (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2016
USD ($)
segment
Mar. 31, 2015
USD ($)
Dec. 31, 2015
USD ($)
Segment information      
Number of business segments | segment 4    
Number of operating segments | segment 3    
Net sales revenue:      
Total net sales revenue $ 82,402 $ 83,878  
Contribution margin:      
Total contribution margin 30,505 31,660  
Selling, general and administrative 28,385 26,330  
Operating income 2,120 5,330  
Other income (expense), net 1,559 (318)  
Income from continuing operations before provision for income taxes 3,679 5,012  
Property, plant and equipment      
Total property, plant and equipment 69,374   $ 68,728
United States      
Net sales revenue:      
Total net sales revenue 38,295 38,522  
Property, plant and equipment      
Total property, plant and equipment 66,949   66,044
Other      
Net sales revenue:      
Total net sales revenue 30,909 33,276  
Property, plant and equipment      
Total property, plant and equipment 2,425   $ 2,684
South Korea (Synergy)      
Net sales revenue:      
Total net sales revenue 13,198 12,080  
NSP Americas      
Net sales revenue:      
Total net sales revenue 45,183 46,510  
Contribution margin:      
Total contribution margin 18,917 19,520  
NSP Americas | General health      
Net sales revenue:      
Total net sales revenue 19,617 20,032  
NSP Americas | Immune      
Net sales revenue:      
Total net sales revenue 5,576 6,217  
NSP Americas | Cardiovascular      
Net sales revenue:      
Total net sales revenue 3,112 3,101  
NSP Americas | Digestive      
Net sales revenue:      
Total net sales revenue 13,079 13,365  
NSP Americas | Personal care      
Net sales revenue:      
Total net sales revenue 930 970  
NSP Americas | Weight management      
Net sales revenue:      
Total net sales revenue 2,869 2,825  
NSP Russia, Central and Eastern Europe      
Net sales revenue:      
Total net sales revenue 6,352 7,443  
Contribution margin:      
Total contribution margin 2,181 2,596  
NSP Russia, Central and Eastern Europe | General health      
Net sales revenue:      
Total net sales revenue 2,723 2,879  
NSP Russia, Central and Eastern Europe | Immune      
Net sales revenue:      
Total net sales revenue 540 913  
NSP Russia, Central and Eastern Europe | Cardiovascular      
Net sales revenue:      
Total net sales revenue 477 453  
NSP Russia, Central and Eastern Europe | Digestive      
Net sales revenue:      
Total net sales revenue 2,121 1,970  
NSP Russia, Central and Eastern Europe | Personal care      
Net sales revenue:      
Total net sales revenue 249 882  
NSP Russia, Central and Eastern Europe | Weight management      
Net sales revenue:      
Total net sales revenue 242 346  
Synergy WorldWide      
Net sales revenue:      
Total net sales revenue 29,848 28,768  
Contribution margin:      
Total contribution margin 8,939 9,048  
Synergy WorldWide | General health      
Net sales revenue:      
Total net sales revenue 8,640 7,702  
Synergy WorldWide | Immune      
Net sales revenue:      
Total net sales revenue 209 193  
Synergy WorldWide | Cardiovascular      
Net sales revenue:      
Total net sales revenue 12,693 12,655  
Synergy WorldWide | Digestive      
Net sales revenue:      
Total net sales revenue 2,487 2,294  
Synergy WorldWide | Personal care      
Net sales revenue:      
Total net sales revenue 1,939 1,830  
Synergy WorldWide | Weight management      
Net sales revenue:      
Total net sales revenue 3,880 4,094  
China and New Markets      
Net sales revenue:      
Total net sales revenue 1,019 1,157  
Contribution margin:      
Total contribution margin 468 496  
China and New Markets | General health      
Net sales revenue:      
Total net sales revenue 471 531  
China and New Markets | Immune      
Net sales revenue:      
Total net sales revenue 131 158  
China and New Markets | Cardiovascular      
Net sales revenue:      
Total net sales revenue 73 81  
China and New Markets | Digestive      
Net sales revenue:      
Total net sales revenue 260 290  
China and New Markets | Personal care      
Net sales revenue:      
Total net sales revenue 22 27  
China and New Markets | Weight management      
Net sales revenue:      
Total net sales revenue $ 62 $ 70