Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 26, 2018
Document And Entity Information
Document Type	10-Q
Document Period End Date	Sep. 30, 2018
Entity Registrant Name	NATURAL HEALTH TRENDS CORP.
Entity Central Index Key	0000912061
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Entity Common Stock, Shares Outstanding (in shares)		11,376,092
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Amendment Flag	false