Annual report pursuant to Section 13 and 15(d)

Note 10 - Long Lived Assets (Details)

v2.4.1.9
Note 10 - Long Lived Assets (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Long-lived assets:    
Long-lived assets $ 476us-gaap_NoncurrentAssets $ 265us-gaap_NoncurrentAssets
China [Member]    
Long-lived assets:    
Long-lived assets 241us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= nhtc_ChinaMember
137us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= nhtc_ChinaMember
Other Foreign Countries [Member]    
Long-lived assets:    
Long-lived assets 204us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= nhtc_OtherForeignCountriesMember
93us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= nhtc_OtherForeignCountriesMember
United States [Member]    
Long-lived assets:    
Long-lived assets $ 31us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= nhtc_UnitedStatesMember
$ 35us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= nhtc_UnitedStatesMember