Advances Receivable, net - Total advances receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Advance Principal	$ 10,184
Deferred Fees	(59)
Provision for Credit Losses	(736)
Carrying Value	9,389	$ 0
Merchant Cash Advances [Member]
Advance Principal	7,434
Deferred Fees	0
Provision for Credit Losses	(736)
Carrying Value	6,698
Aviation Advance [Member]
Advance Principal	2,750
Deferred Fees	(59)
Provision for Credit Losses	0
Carrying Value	$ 2,691

The amount of deferred fee on accounts and other receivables.

No definition available.

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

- Definition

The amount of principal balance of accounts and other receivables.

+ References

No definition available.

+ Details

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

- Definition

Amount, after allowance, receivable from customers, clients, or other third-parties, and receivables classified as other due within one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

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

- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.4)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=ccur_MerchantCashAdvancesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=ccur_AviationAdvanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: