Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Feb. 07, 2019
Jun. 30, 2018
Document and Entity Information      
Entity Registrant Name Control4 Corp    
Entity Central Index Key 0001259515    
Document Type 10-K    
Document Period End Date Dec. 31, 2018    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 553.7
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Ex Transition Period false    
Entity Common Stock, Shares Outstanding   26,520,482  
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY