Cover - USD ($)	12 Months Ended
	Mar. 31, 2023	Jul. 14, 2023	Sep. 30, 2022
Cover [Abstract]
Entity Registrant Name	FCCC, Inc.
Entity Central Index Key	0000730669
Document Type	10-K/A
Amendment Flag	true
Entity Voluntary Filers	No
Current Fiscal Year End Date	--03-31
Entity Well Known Seasoned Issuer	No
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Document Period End Date	Mar. 31, 2023
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2023
Entity Common Stock Shares Outstanding		3,461,022
Entity Public Float			$ 574,912
Document Annual Report	true
Document Transition Report	false
Entity File Number	001-08589
Entity Incorporation State Country Code	NV
Entity Tax Identification Number	06-0759497
Entity Interactive Data Current	Yes
Amendment Description	Amended filing is to correct the shell status that was incorrectly marked in the original filing.
Icfr Auditor Attestation Flag	true
City Area Code	812
Local Phone Number	933-8888
Entity Address Postal Zip Code	10005
Entity Address Address Line 1	40 Wall St
Entity Address Address Line 2	Floor 60
Entity Address City Or Town	New York City
Entity Address State Or Province	NY
Auditor Location	Lagos, Nigeria
Auditor Name	OLAYINKA OYEBOLA & CO
Auditor Firm Id	5968