Note 4 - Other Assets - Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Prepaid rent	$ 4,296	$ 4,110

Amount of asset related to consideration paid in advance for rent that provides economic benefits more than a future period of one year or the normal operating cycle, if longer.

No definition available.

Name:	cdzi_PrepaidRentNoncurrent
Namespace Prefix:	cdzi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant