v3.26.3
Cover - USD ($)
 12 Months Ended
Dec. 31, 2025
Mar. 25, 2026
Jun. 30, 2025
Document Information [Line Items]      
Entity Central Index Key 0000727273    
Entity Registrant Name Cadiz Inc.    
Amendment Flag true    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2025    
Document Type 10-K/A    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Document Transition Report false    
Entity File Number 001-40579    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 77-0313235    
Entity Address, Address Line One 550 S. Hope Street,    
Entity Address, Address Line Two Suite 2850    
Entity Address, City or Town Los Angeles    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 90071    
City Area Code (213)    
Local Phone Number 271-1600    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 165,039,069
Entity Common Stock, Shares Outstanding   83,424,366  
Entity Emerging Growth Company false    
Amendment Description This Amendment No. 1 (“Amendment No. 1”) to the Annual Report on Form 10-K of Cadiz Inc. (the “Company”) for the year ended December 31, 2025, as filed with the U.S. Securities and Exchange Commission on March 31, 2026 (the “Original Form 10-K”), is being filed for the sole purpose of correcting the Consent of Independent Registered Public Accounting Firm (the “Consent”) filed as Exhibit 23.1 to the Original Form 10-K. The filed Consent contained a typographical error in the date of the report referenced therein, which was incorrectly stated as March 30, 2026 instead of March 31, 2026, the date included in the manually signed Consent. A corrected Consent is filed as Exhibit 23.1 attached hereto.Except as otherwise expressly noted herein, this Amendment No. 1 does not modify or update in any way the disclosures in, or exhibits to, the Original Form 10-K, nor does it reflect events occurring after the filing of the Original Form 10-K. Accordingly, this Amendment No. 1 should be read in conjunction with the Original Form 10-K.In addition, as required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), certifications by the Company’s principal executive officer and principal financial officer are filed herewith as exhibits to this Amendment No. 1 pursuant to Rule 13a-14(a) or 15d-14(a) of the Exchange Act. As no financial statements have been included in this Amendment No. 1 and it does not contain or amend any disclosure with respect to Items 307 or 308 of Regulation S-K, paragraphs 3, 4, and 5 of the certifications have been omitted. The Company is not including certifications pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) as no financial statements are being filed with this Amendment No. 1.    
Documents Incorporated by Reference [Text Block] Portions of the Registrant’s definitive Proxy Statement to be filed for its 2026 Annual Meeting of Stockholders are incorporated by reference into Part III of this Report. The Registrant is not incorporating by reference any other documents within this Annual Report on Form 10-K except those footnoted in Part IV under the heading “Item 15. Exhibits and Financial Statement Schedules”.    
Document Fiscal Period Focus FY    
Common Stock, par value $0.01 per share [Member]      
Document Information [Line Items]      
Security Exchange Name NASDAQ    
Trading Symbol CDZI      
Title of 12(b) Security Common Stock, par value $0.01 per share    
Depositary Shares [Member]      
Document Information [Line Items]      
Security Exchange Name NASDAQ    
Trading Symbol CDZIP    
Title of 12(b) Security Depositary Shares