Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

Document And Entity Information - USD ($)
12 Months Ended
Dec. 31, 2020
Mar. 12, 2021
Jun. 30, 2020
Document Information Line Items      
Entity Registrant Name BIOSIG TECHNOLOGIES, INC.    
Trading Symbol BSGM    
Document Type 10-K    
Current Fiscal Year End Date --12-31    
Entity Common Stock, Shares Outstanding   31,789,781  
Entity Public Float     $ 182,302,855
Amendment Flag false    
Entity Central Index Key 0001530766    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Document Period End Date Dec. 31, 2020    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Document Annual Report true    
Entity File Number 001-38659    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 26-4333375    
Entity Address, Address Line One 54 Wilton Road, 2nd Floor    
Entity Address, City or Town Westport    
Entity Address, State or Province CT    
Entity Address, Postal Zip Code 06880    
City Area Code (203)    
Local Phone Number 409-5444    
Title of 12(b) Security Common Stock, par value $0.001 per share    
Security Exchange Name NASDAQ    
Entity Interactive Data Current Yes    
Document Transition Report false