INTANGIBLE ASSETS AND GOODWILL - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Intangible assets
Gross Carrying Value	$ 26,088	$ 23,700
Accumulated Amortization	16,834	15,447
Net Carrying Value	9,254	8,253
Perpetual water rights and other	3,867	3,867
Amortization of intangible assets	1,400	1,100	$ 1,500
Water pumping rights
Intangible assets
Gross Carrying Value	1,084	1,084
Accumulated Amortization	127	122
Net Carrying Value	$ 957	962
Water planning studies
Intangible assets
Weighted Average Amortization Period (years)	12 years
Gross Carrying Value	$ 22,153	20,686
Accumulated Amortization	15,230	14,119
Net Carrying Value	$ 6,923	6,567
Leasehold improvements and other
Intangible assets
Weighted Average Amortization Period (years)	21 years
Gross Carrying Value	$ 2,851	1,930
Accumulated Amortization	1,477	1,206
Net Carrying Value	$ 1,374	$ 724

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount after impairment of indefinite-lived intangible assets classified as other. Excludes financial assets and goodwill.

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