Commitments and Contingencies and Related Party Transactions (Details)	6 Months Ended
Dec. 31, 2020 USD ($)
Commitments and Contingencies and Related Party Transactions
Terminated Employees Severance Compensation Period	6 months
Contingent Liability for Employee Severance Payments	$ 99,000

Period of time severed employees receive compensation after termination.

No definition available.

Name:	ccur_TerminatedEmployeesSeveranceCompensationPeriod
Namespace Prefix:	ccur_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration