XML 44 R34.htm IDEA: XBRL DOCUMENT v3.7.0.1

SUBSEQUENT EVENT - NARRATIVE (Details) - $ / shares				3 Months Ended		6 Months Ended
	Jul. 31, 2017	Apr. 24, 2017	Jan. 24, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Subsequent Event [Line Items]
Common Stock, Dividends, Per Share, Declared		$ 0.10	$ 0.09	$ 0.45	$ 0.06	$ 0.89	$ 0.11
CommonStockSpecialDividendsPerShareDeclared		$ 0.35	$ 0.35
Subsequent Event
Subsequent Event [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.11
CommonStockSpecialDividendsPerShareDeclared	$ 0.25

X

- Definition

Special dividends declared during the period for each share of common stock outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	nhtc_
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X

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Details

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