Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2020	Nov. 01, 2020
Document And Entity Information
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Entity Registrant Name	CANTERBURY PARK HOLDING CORPORATION
Entity Central Index Key	0001672909
Title of 12(b) Security	Common Stock Common stock, $.01 par value
Trading Symbol	CPHC
Security Exchange Name	NASDAQ
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		4,718,825
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	false