Cover - shares	9 Months Ended
	Sep. 30, 2020	Nov. 02, 2020
Cover [Abstract]
Entity Registrant Name	CELCUITY INC.
Entity Central Index Key	0001603454
Document Type	10-Q
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	true
Entity Current Reporting Status	Yes
Document Period End Date	Sep. 30, 2020
Entity Filer Category	Accelerated Filer
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2020
Entity Ex Transition Period	false
Entity Common Stock Shares Outstanding		10,296,998
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Entity Incorporation State Country Code	DE
Entity Address State Or Province	MN
Entity File Number	001-38207
Entity Address Address Line 1	16305 36th Avenue North;
Entity Address Address Line 2	Suite 100
Entity Address City Or Town	Minneapolis
Entity Address Postal Zip Code	55446
City Area Code	763
Local Phone Number	392-0767
Security 12b Title	Common Stock, $0.001 par value per share
Trading Symbol	CELC
Security Exchange Name	NASDAQ
Entity Tax Identification Number	82-2863566