Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2022	May 13, 2022
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	001-15481
Entity Registrant Name	SANDSTON CORP
Entity Incorporation, State or Country Code	MI
Entity Tax Identification Number	38-2483796
Entity Address, Address Line One	1496 Business Park Drive, Suite A
Entity Address, City or Town	Traverse City
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	49686
City Area Code	231
Local Phone Number	943-2221
Entity Interactive Data Current	Yes
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	true
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	SDON
Security Exchange Name	NONE
Entity Common Stock, Shares Outstanding		18,005,239
Entity Central Index Key	0000892832
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Amendment Flag	false