Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v3.20.1
Segment Information (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
USD ($)
segment
Mar. 31, 2019
USD ($)
segment
Dec. 31, 2019
USD ($)
Segment information      
Number of business segments | segment 4    
Net sales:      
Total net sales revenue $ 95,926 $ 91,272  
Contribution margin:      
Total contribution margin 38,227 36,830  
Selling, general and administrative expenses 31,065 33,852  
Operating income 7,162 2,978  
Other loss, net (2,410) (48)  
Income before provision for income taxes 4,752 $ 2,930  
Total property, plant and equipment, net 58,088   $ 59,512
Total assets 215,442   213,068
NSP Americas; NSP Russia, Central and Eastern Europe; and NSP China      
Segment information      
Number of operating segments | segment   3  
Synergy WorldWide      
Segment information      
Number of operating segments | segment   1  
Asia      
Net sales:      
Total net sales revenue 30,958 $ 33,596  
Contribution margin:      
Total contribution margin 14,527 15,725  
Total assets 65,199   65,959
Asia | General health      
Net sales:      
Total net sales revenue 9,046 8,084  
Asia | Immune      
Net sales:      
Total net sales revenue 201 158  
Asia | Cardiovascular      
Net sales:      
Total net sales revenue 9,339 11,833  
Asia | Digestive      
Net sales:      
Total net sales revenue 6,156 4,775  
Asia | Personal care      
Net sales:      
Total net sales revenue 3,005 4,267  
Asia | Weight management      
Net sales:      
Total net sales revenue 3,211 4,479  
Europe      
Net sales:      
Total net sales revenue 20,627 15,597  
Contribution margin:      
Total contribution margin 6,831 4,941  
Total assets 15,171   15,187
Europe | General health      
Net sales:      
Total net sales revenue 7,961 5,748  
Europe | Immune      
Net sales:      
Total net sales revenue 2,444 1,273  
Europe | Cardiovascular      
Net sales:      
Total net sales revenue 2,897 2,851  
Europe | Digestive      
Net sales:      
Total net sales revenue 4,931 3,631  
Europe | Personal care      
Net sales:      
Total net sales revenue 1,751 1,499  
Europe | Weight management      
Net sales:      
Total net sales revenue 643 595  
North America      
Net sales:      
Total net sales revenue 38,757 36,523  
Contribution margin:      
Total contribution margin 14,419 13,793  
Total assets 127,178   124,337
North America | General health      
Net sales:      
Total net sales revenue 15,464 15,748  
North America | Immune      
Net sales:      
Total net sales revenue 7,798 4,218  
North America | Cardiovascular      
Net sales:      
Total net sales revenue 4,167 5,076  
North America | Digestive      
Net sales:      
Total net sales revenue 8,241 8,721  
North America | Personal care      
Net sales:      
Total net sales revenue 1,929 1,348  
North America | Weight management      
Net sales:      
Total net sales revenue 1,158 1,412  
Latin America and Other      
Net sales:      
Total net sales revenue 5,584 5,556  
Contribution margin:      
Total contribution margin 2,450 2,371  
Total assets 7,894   7,585
Latin America and Other | General health      
Net sales:      
Total net sales revenue 1,614 1,612  
Latin America and Other | Immune      
Net sales:      
Total net sales revenue 809 608  
Latin America and Other | Cardiovascular      
Net sales:      
Total net sales revenue 378 339  
Latin America and Other | Digestive      
Net sales:      
Total net sales revenue 2,362 2,536  
Latin America and Other | Personal care      
Net sales:      
Total net sales revenue 252 257  
Latin America and Other | Weight management      
Net sales:      
Total net sales revenue 169 204  
China      
Contribution margin:      
Selling, general and administrative expenses 1,900 2,200  
United States      
Net sales:      
Total net sales revenue 35,839 33,961  
Contribution margin:      
Total property, plant and equipment, net 53,450   54,470
South Korea      
Net sales:      
Total net sales revenue 16,389 18,528  
Other      
Net sales:      
Total net sales revenue 43,698 $ 38,783  
Other      
Contribution margin:      
Total property, plant and equipment, net $ 4,638   $ 5,042