Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2020	Apr. 30, 2020
Cover [Abstract]
Entity Central Index Key	0001786117
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	001-39143
Entity Registrant Name	ALPINE INCOME PROPERTY TRUST, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	84-2769895
Entity Address, Address Line One	1140 N. Williamson Blvd.
Entity Address, Address Line Two	Suite 140
Entity Address, City or Town	Daytona Beach
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	32114
City Area Code	386
Local Phone Number	274-2202
Title of 12(b) Security	COMMON STOCK, $0.01 PAR VALUE
Trading Symbol	PINE
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		7,546,703
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false