Note 7 - Leases & Property, Plant, Equipment and Water Programs	6 Months Ended
Jun. 30, 2026
Notes to Financial Statements
Lessee, Operating Leases and Property, Plant and Equipment Disclosure [Text Block]	NOTE 7 – LEASES & PROPERTY, PLANT, EQUIPMENT AND WATER PROGRAMS Effective February 1, 2024, the Company entered into a 26-year right-of-way agreement with the United States Bureau of Land Management (“BLM”) with respect to the Company’s Northern Pipeline asset which resulted in recording right-of-use assets and lease liabilities in the amount of $1.9 million resulting from $4.8 million in future lease payments over the 26 years less imputed interest of $2.9 million based upon a 10% weighted average discount rate. Rent under the agreement is set at fair market value as determined by BLM under its published per-acre rent schedule for linear rights-of-way, which is adjusted annually by a defined inflation factor and recalculated by BLM periodically. In accordance with ASC 842, the Company measured its lease payments using the rate in effect at the February 1, 2024 commencement date, approximately $186,000 annually, and does not remeasure the lease liability for subsequent changes in that rate. Effective January 1, 2026, BLM issued an updated per-acre rent schedule for calendar years 2026 through 2035, under which rent billed for the right-of-way increased to $474,000 for calendar year 2026. There was no change in the acreage encumbered or in any other term of the agreement. In accordance with ASC 842, the Company recognizes the excess over the commencement-date rate as variable lease cost in the period incurred. Lease cost related to the BLM right-of-way was $237,000 for the six months ended June 30, 2026, consisting of operating lease cost of $93,000 and variable lease cost of $144,000, compared with $93,000 for the six months ended June 30, 2025. BLM's rent schedule provides for 2.6% annual increases through 2035 and is subject to recalculation thereafter, so future rent may differ materially from the payments included in the measurement of the lease liability. The Company has operating leases for right-of-way agreements, corporate offices, vehicles and office equipment. The Company’s leases have remaining lease terms of 28 months to 25 years as of June 30, 2026, some of which include options to extend or terminate the lease. However, the Company is not reasonably certain to exercise options to renew or terminate, and therefore renewal and termination options are not included in the lease term or the right-of-use asset and lease liability balances. The Company’s current lease arrangements expire in 2049. The Company does not have any finance leases. As a lessor, in February 2016, the Company entered into a lease agreement with Fenner Valley Farms LLC (“FVF”) (the “lessee”), pursuant to which FVF is leasing, for a 99-year term, 2,100 acres owned by Cadiz in San Bernardino County, California, to be used to plant, grow and harvest agricultural crops (“FVF Lease Agreement”). As consideration for the lease, FVF paid the Company a one-time payment of $12.0 million upon closing. The Company expects to recognize non-cash rental income of $420,000 annually over the next five years related to the FVF Lease Agreement. Depreciation expense on land improvements, buildings, leasehold improvements, machinery and equipment and furniture and fixtures was $770,000 and $605,000 for the six months ended June 30, 2026 and 2025, respectively.

Note 7 - Leases & Property, Plant, Equipment and Water Programs

6 Months Ended

Jun. 30, 2026

Lessee, Operating Leases and Property, Plant and Equipment Disclosure [Text Block]

NOTE 7 – LEASES & PROPERTY, PLANT, EQUIPMENT AND WATER PROGRAMS

Effective February 1, 2024, the Company entered into a 26-year right-of-way agreement with the United States Bureau of Land Management (“BLM”) with respect to the Company’s Northern Pipeline asset which resulted in recording right-of-use assets and lease liabilities in the amount of $1.9 million resulting from $4.8 million in future lease payments over the 26 years less imputed interest of $2.9 million based upon a 10% weighted average discount rate. Rent under the agreement is set at fair market value as determined by BLM under its published per-acre rent schedule for linear rights-of-way, which is adjusted annually by a defined inflation factor and recalculated by BLM periodically. In accordance with ASC 842, the Company measured its lease payments using the rate in effect at the February 1, 2024 commencement date, approximately $186,000 annually, and does not remeasure the lease liability for subsequent changes in that rate.

Effective January 1, 2026, BLM issued an updated per-acre rent schedule for calendar years 2026 through 2035, under which rent billed for the right-of-way increased to $474,000 for calendar year 2026. There was no change in the acreage encumbered or in any other term of the agreement. In accordance with ASC 842, the Company recognizes the excess over the commencement-date rate as variable lease cost in the period incurred. Lease cost related to the BLM right-of-way was $237,000 for the six months ended June 30, 2026, consisting of operating lease cost of $93,000 and variable lease cost of $144,000, compared with $93,000 for the six months ended June 30, 2025. BLM's rent schedule provides for 2.6% annual increases through 2035 and is subject to recalculation thereafter, so future rent may differ materially from the payments included in the measurement of the lease liability.

The Company has operating leases for right-of-way agreements, corporate offices, vehicles and office equipment. The Company’s leases have remaining lease terms of 28 months to 25 years as of June 30, 2026, some of which include options to extend or terminate the lease. However, the Company is not reasonably certain to exercise options to renew or terminate, and therefore renewal and termination options are not included in the lease term or the right-of-use asset and lease liability balances. The Company’s current lease arrangements expire in 2049. The Company does not have any finance leases.

As a lessor, in February 2016, the Company entered into a lease agreement with Fenner Valley Farms LLC (“FVF”) (the “lessee”), pursuant to which FVF is leasing, for a 99-year term, 2,100 acres owned by Cadiz in San Bernardino County, California, to be used to plant, grow and harvest agricultural crops (“FVF Lease Agreement”). As consideration for the lease, FVF paid the Company a one-time payment of $12.0 million upon closing. The Company expects to recognize non-cash rental income of $420,000 annually over the next five years related to the FVF Lease Agreement.

Depreciation expense on land improvements, buildings, leasehold improvements, machinery and equipment and furniture and fixtures was $770,000 and $605,000 for the six months ended June 30, 2026 and 2025, respectively.