Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2024	Apr. 26, 2024
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-38804
Entity Registrant Name	Zynex, Inc.
Entity Incorporation, State or Country Code	NV
Entity Tax Identification Number	90-0275169
Entity Address, Address Line One	9655 Maroon Cir
Entity Address, City or Town	Englewood
Entity Address, Country	CO
Entity Address, Postal Zip Code	80112
City Area Code	303
Local Phone Number	703-4906
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	ZYXI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		31,775,183
Entity Central Index Key	0000846475
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false