XML 40 R25.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Capital Transactions (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2016
Capital Transactions |
Schedule of stock option activity | Stock option activity for the nine-month period ended September 30, 2016, is as follows (amounts in thousands, except per share information):
| Number of Shares |  | Weighted Average Exercise Price Per Share
Options outstanding at December 31, 2015 | 1,683 |  |  | $ | 12.21 |
Granted | — |  |  | — |
Forfeited or canceled | (59 | ) |  | 11.77 |
Exercised | (32 | ) |  | 3.99 |
Options outstanding at September 30, 2016 | 1,592 |  |  | 12.40 |
Schedule of restricted stock unit activity | RSU activity for the nine-month period ended September 30, 2016, is as follows (amounts in thousands, except per share information):
| Number of Shares |  | Weighted Average Grant Date Fair Value
Restricted Stock Units outstanding at December 31, 2015 | 744 |  |  | $ | 12.48 |
Granted | 246 |  |  | 9.33 |
Forfeited | (10 | ) |  | 11.73 |
Issued | (154 | ) |  | 13.05 |
Restricted Stock Units outstanding at September 30, 2016 | 826 |  |  | 11.46 |

X
- References No definition available. + Details
Name: | natr_CapitalTransactionsDisclosureAbstract
Namespace Prefix: | natr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration