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Document And Entity Information - USD ($)
12 Months Ended
Dec. 31, 2019
Mar. 26, 2020
Jun. 30, 2019
Document And Entity Information      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2019    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Entity Registrant Name CANTERBURY PARK HOLDING CORPORATION    
Entity Central Index Key 0001672909    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Common Stock, Shares Outstanding   4,676,959  
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Shell Company false    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Public Float     $ 29,985,225