The additional number of shares authorized to be repurchased by an entity's Board of Directors under a new stock repurchase plan.

No definition available.

Name:	ccur_StockRepurchaseProgramAdditionalNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix:	ccur_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Stock Repurchase Plan (Details) - shares	Sep. 30, 2020	Feb. 28, 2019	May 05, 2018
Stock Repurchase Plan
Number of common shares authorized for repurchase			1,000,000
Additional number of common shares authorized under new repurchase program		500,000
Number of shares available for repurchase	364,298