XML 18 R1.htm IDEA: XBRL DOCUMENT v3.21.2
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Sep. 30, 2021
Nov. 19, 2021
Mar. 31, 2021
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Sep. 30, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Trading Symbol SRDX    
Security Exchange Name NASDAQ    
Entity Registrant Name Surmodics, Inc    
Entity Central Index Key 0000924717    
Current Fiscal Year End Date --09-30    
Entity Well-known Seasoned Issuer Yes    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Small Business false    
Entity Emerging Growth Company false    
Title of 12(b) Security Common Stock, $0.05 par value    
Entity File Number 0-23837    
Entity Incorporation, State or Country Code MN    
Entity Tax Identification Number 41-1356149    
Entity Address, Address Line One 9924 West 74th Street    
Entity Address, City or Town Eden Prairie    
Entity Address, State or Province MN    
Entity Address, Postal Zip Code 55344    
City Area Code 952    
Local Phone Number 500-7000    
Document Annual Report true    
Document Transition Report false    
Entity Common Stock, Shares Outstanding   13,905,000  
Entity Public Float     $ 752
Documents Incorporated by Reference

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Registrant’s Proxy Statement for the Registrant’s 2022 Annual Meeting of Shareholders are incorporated by reference into Part III.