Cover - shares	6 Months Ended
	Jun. 30, 2021	Aug. 02, 2021
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	Jun. 30, 2021
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2021
Entity Ex Transition Period	true
Entity Common Stock Shares Outstanding		14,904,898
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	001-38207
Entity Incorporation State Country Code	DE
Entity Tax Identification Number	82-2863566
Entity Address Address Line 1	16305 36th Avenue North
Entity Address Address Line 2	Suite 100
Entity Address City Or Town	Minneapolis
Entity Address State Or Province	MN
Entity Address Postal Zip Code	55446
Security 12b Title	Common Stock, $0.001 par value per share
Trading Symbol	CELC
Security Exchange Name	NASDAQ
Entity Interactive Data Current	Yes
City Area Code	763
Local Phone Number	392-0767