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INTANGIBLE ASSETS AND GOODWILL - Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
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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 |

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition 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. + References No definition available. + Details
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