Discontinued Operations (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2018	Sep. 30, 2018	Oct. 13, 2017
Business Combination Contingent Consideration out of content delivery business Current	$ 1,450	$ 1,450
Content Delivery Segment [Member]
Disposal Group, Including Discontinued Operation, Consideration	29,812		$ 29,000
Proceeds from Divestiture of Businesses	28,362
Business Combination Contingent Consideration out of content delivery business Current	1,450
Disposal Group, Including Discontinued Operation, Consideration Adjustment for Working Capital	$ 812

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.

+ Details

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

- Definition

Amount of consideration adjustments for working capital of the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

Name:	ccur_DisposalGroupIncludingDiscontinuedOperationConsiderationAdjustmentForWorkingCapital
Namespace Prefix:	ccur_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

Name:	us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=ccur_ContentDeliverySegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: