Document And Entity Information - USD ($)	12 Months Ended
	Jun. 30, 2017	Sep. 15, 2017	Dec. 31, 2016
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Entity Registrant Name	CONCURRENT COMPUTER CORP/DE
Entity Central Index Key	0000749038
Current Fiscal Year End Date	--06-30
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 49,963,414
Trading Symbol	CCUR
Entity Common Stock, Shares Outstanding		9,894,103