Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.20.4
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Feb. 23, 2021
Jun. 30, 2020
Document and Entity Information      
Document Type 10-K    
Document Period End Date Dec. 31, 2020    
Entity Registrant Name Wayside Technology Group, Inc.    
Title of 12(b) Security Common Stock, par value $0.01 per share    
Trading Symbol WSTG    
Security Exchange Name NASDAQ    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Central Index Key 0000945983    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Public Float     $ 103.6
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
ICFR Auditor Attestation Flag true    
Entity Common Stock, Shares Outstanding   4,410,035  
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY