Subsequent Events (Details Textual) - USD ($) $ in Thousands	Jan. 02, 2019	Dec. 31, 2018	Jun. 30, 2018
Business Combination Contingent Consideration out of content delivery business Current		$ 1,450	$ 1,450
Subsequent Event [Member]
Cash Received From Escrow	$ 1,450

Amount of asset recognized arising from contingent consideration in a business combination which is classified under content delivery business, expected to be realized within one year or the normal operating cycle, if longer.

No definition available.

Name:	ccur_BusinessCombinationContingentConsiderationOutOfContentDeliveryBusinessCurrent
Namespace Prefix:	ccur_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant