XML 11 R1.htm IDEA: XBRL DOCUMENT v3.22.2.2
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2022
Oct. 25, 2022
Document and Entity Information [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2022  
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 800  
Local Phone Number 495-6670  
Title of 12(b) Security Common Stock, $0.001 par value per share  
Trading Symbol ZYXI  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   37,453,445
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus Q3  
Entity Central Index Key 0000846475  
Amendment Flag false