v3.26.3
Cover - shares
6 Months Ended
Jun. 30, 2026
Aug. 06, 2026
Cover [Abstract]    
Document Type 10-Q/A  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2026  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --12-31  
Entity File Number 001-37799  
Entity Registrant Name Tactile Systems Technology, Inc.  
Entity Central Index Key 0001027838  
Entity Tax Identification Number 41-1801204  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 3701 Wayzata Blvd  
Entity Address, Address Line Two Suite 300  
Entity Address, City or Town Minneapolis  
Entity Address, State or Province MN  
Entity Address, Postal Zip Code 55416  
City Area Code 612  
Local Phone Number 355-5100  
Title of 12(b) Security Common Stock, Par Value $0.001 Per Share  
Trading Symbol TCMD  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   22,652,286