Note 6 - Subsequent Events (Details Textual) - Subsequent Event [Member] - Senior Secured Debt [Member]	May 01, 2017 USD ($)
Debt Instrument, Amount to be Refinanced	$ 45,000,000
Debt Instrument, Additional Amount after Refinance	15,000,000
Debt Instrument, Additional Amount after Refinance, Maximum	$ 240,000,000

Represents the maximum additional amount of debt instrument after refinancing.

No definition available.

Name:	cdzi_DebtInstrumentAdditionalAmountAfterRefinanceMaximum
Namespace Prefix:	cdzi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant