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Segment Information (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2017 USD ($) segment | Jun. 30, 2016 USD ($) | Dec. 31, 2016 USD ($)
Segment information |  |  |  |  |
Number of business segments | segment |  |  | 4 |  |
Number of operating segments | segment |  |  | 3 |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | $ 81,344 | $ 89,366 | $ 164,442 | $ 171,768 |
Contribution margin: |  |  |  |  |
Total contribution margin | 31,859 | 35,497 | 64,246 | 66,002 |
Selling, general and administrative | 31,836 | 31,249 | 62,172 | 59,634 |
Operating income | 23 | 4,248 | 2,074 | 6,368 |
Other income (expense), net | 441 | (622) | 1,716 | 937 |
Income from continuing operations before provision for income taxes | 464 | 3,626 | 3,790 | 7,305 |
Property, plant and equipment |  |  |  |  |
Total property, plant and equipment | 72,662 |  | 72,662 |  | $ 73,272
United States |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 33,805 | 37,598 | 71,540 | 75,893 |
Property, plant and equipment |  |  |  |  |
Total property, plant and equipment | 69,876 |  | 69,876 |  | 70,770
South Korea (Synergy) |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 12,486 | 15,473 | 23,832 | 28,671 |
Other |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 35,053 | 36,295 | 69,070 | 67,204 |
Property, plant and equipment |  |  |  |  |
Total property, plant and equipment | 2,786 |  | 2,786 |  | $ 2,502
NSP Americas |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 39,421 | 44,725 | 84,066 | 89,908 |
Contribution margin: |  |  |  |  |
Total contribution margin | 16,495 | 19,103 | 35,690 | 38,020 |
NSP Americas | General health |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 18,181 | 20,234 | 38,047 | 39,851 |
NSP Americas | Immune |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 3,169 | 3,738 | 8,242 | 9,314 |
NSP Americas | Cardiovascular |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 2,820 | 3,418 | 6,136 | 6,530 |
NSP Americas | Digestive |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 11,660 | 11,845 | 23,808 | 24,924 |
NSP Americas | Personal care |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 1,487 | 2,853 | 3,373 | 3,783 |
NSP Americas | Weight management |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 2,104 | 2,637 | 4,460 | 5,506 |
NSP Russia, Central and Eastern Europe |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 6,662 | 6,269 | 14,269 | 12,621 |
Contribution margin: |  |  |  |  |
Total contribution margin | 2,246 | 2,065 | 4,755 | 4,246 |
NSP Russia, Central and Eastern Europe | General health |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 2,941 | 2,501 | 6,499 | 5,224 |
NSP Russia, Central and Eastern Europe | Immune |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 638 | 857 | 1,401 | 1,397 |
NSP Russia, Central and Eastern Europe | Cardiovascular |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 480 | 493 | 1,011 | 970 |
NSP Russia, Central and Eastern Europe | Digestive |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 2,030 | 1,407 | 3,907 | 3,528 |
NSP Russia, Central and Eastern Europe | Personal care |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 424 | 853 | 1,032 | 1,102 |
NSP Russia, Central and Eastern Europe | Weight management |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 149 | 158 | 419 | 400 |
Synergy WorldWide |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 30,363 | 33,013 | 57,676 | 62,861 |
Contribution margin: |  |  |  |  |
Total contribution margin | 9,410 | 10,245 | 17,609 | 19,184 |
Synergy WorldWide | General health |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 7,624 | 9,694 | 14,311 | 18,334 |
Synergy WorldWide | Immune |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 117 | 41 | 238 | 250 |
Synergy WorldWide | Cardiovascular |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 12,603 | 13,505 | 23,706 | 26,198 |
Synergy WorldWide | Digestive |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 4,154 | 3,442 | 7,619 | 5,929 |
Synergy WorldWide | Personal care |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 1,926 | 1,948 | 3,993 | 3,887 |
Synergy WorldWide | Weight management |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 3,939 | 4,383 | 7,809 | 8,263 |
China and New Markets |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 4,898 | 5,359 | 8,431 | 6,378 |
Contribution margin: |  |  |  |  |
Total contribution margin | 3,708 | 4,084 | 6,192 | 4,552 |
China and New Markets | General health |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 1,085 | 1,537 | 1,965 | 2,008 |
China and New Markets | Immune |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 120 | 216 | 266 | 347 |
China and New Markets | Cardiovascular |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 972 | 1,450 | 1,553 | 1,523 |
China and New Markets | Digestive |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 1,813 | 1,262 | 3,455 | 1,522 |
China and New Markets | Personal care |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 45 | 439 | 121 | 461 |
China and New Markets | Weight management |  |  |  |  |
Net sales revenue: |  |  |  |  |
Total net sales revenue | 863 | 455 | 1,071 | 517 |
China and New Markets | Hong Kong |  |  |  |  |
Contribution margin: |  |  |  |  |
Selling, general and administrative | $ 1,700 | $ 2,000 | $ 2,600 | $ 2,000 |

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