Document And Entity Information - shares	9 Months Ended
	Mar. 31, 2018	May 03, 2018
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Entity Registrant Name	CCUR Holdings, Inc.
Entity Central Index Key	0000749038
Current Fiscal Year End Date	--06-30
Entity Filer Category	Smaller Reporting Company
Trading Symbol	CCUR
Entity Common Stock, Shares Outstanding		9,250,677