XML 36 R24.htm IDEA: XBRL DOCUMENT
v3.19.1

Capital Transactions (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2019
Capital Transactions |
Schedule of share-based compensation, stock options, activity | Stock option activity for the three-month period ended March 31, 2019, is as follows (amounts in thousands, except per share information):
| Number of Shares |  | Weighted Average Exercise Price Per Share
Options outstanding at December 31, 2018 | 1,114 |  |  | $ | 12.23 |
Granted | — |  |  | — |
Forfeited or canceled | (4 | ) |  | 12.07 |
Exercised | — |  |  | — |
Options outstanding at March 31, 2019 | 1,110 |  |  | 12.23 |
Schedule of restricted stock unit activity | Restricted stock unit activity for the three-month period ended March 31, 2019, is as follows (share amounts in thousands, except per share information):
| Number of Shares |  | Weighted Average Grant Date Fair Value
Restricted Stock Units outstanding at December 31, 2018 | 1,058 |  |  | $ | 8.87 |
Granted | 281 |  |  | 6.98 |
Forfeited | (288 | ) |  | 10.57 |
Issued | (82 | ) |  | 11.56 |
Restricted Stock Units outstanding at March 31, 2019 | 969 |  |  | 7.59 |

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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&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 for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration