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Note 10 - Commitments and Contingencies (Details Textual) - USD ($)	Mar. 31, 2025	Mar. 31, 2024
Mojave Groundwater Bank [Member]
Deferred Revenue	$ 625,000	$ 625,000

X

- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(26)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=cdzi_MojaveGroundwaterBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: