Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

v3.20.1
Document And Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Mar. 20, 2020
Jun. 30, 2019
Document Information [Line Items]      
Entity Registrant Name DiaMedica Therapeutics Inc.    
Entity Central Index Key 0001401040    
Trading Symbol dmac    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Current Reporting Status No    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer No    
Entity Emerging Growth Company true    
Entity Ex Transition Period true    
Entity Small Business true    
Entity Interactive Data Current Yes    
Entity Common Stock, Shares Outstanding (in shares)   14,139,074  
Entity Public Float     $ 53.4
Entity Shell Company false    
Document Type 10-K    
Document Period End Date Dec. 31, 2019    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Amendment Flag false    
Title of 12(b) Security Voting Common Shares, no par value per share