XML 12 R1.htm IDEA: XBRL DOCUMENT v3.21.2
Cover - shares
 9 Months Ended
Sep. 30, 2021
Aug. 16, 2021
Cover [Abstract]    
Entity Registrant Name COSMOS HOLDINGS INC.  
Entity Central Index Key 0001474167  
Document Type 10-Q  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Small Business true  
Entity Shell Company false  
Entity Emerging Growth Company false  
Entity Current Reporting Status Yes  
Document Period End Date Sep. 30, 2021  
Entity Filer Category Non-accelerated Filer  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2021  
Entity Common Stock Shares Outstanding   17,039,208
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes  
Entity File Number 000-54436  
Entity Incorporation State Country Code NV  
Entity Tax Identification Number 27-0611758  
Entity Address Address Line 1 141 West Jackson Blvd  
Entity Address Address Line 2 Suite 4236  
Entity Address City Or Town Chicago  
Entity Address State Or Province IL  
Entity Address Postal Zip Code 60604  
City Area Code 312  
Local Phone Number 536-3102  
Security 12b Title Common Stock, $.001 par value  
Trading Symbol COSM