v3.19.2
Cover Page - shares
6 Months Ended
Jun. 30, 2019
Aug. 01, 2019
Cover page.    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Entity Registrant Name Axonics Modulation Technologies, Inc.  
Entity Central Index Key 0001603756  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Emerging Growth Company true  
Entity Small Business true  
Entity Ex Transition period true  
Entity Shell Company false  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Common Stock, Shares Outstanding   28,524,811