GOODWILL AND INTANGIBLE ASSETS - Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
INDEFINITE LIVED INTANGIBLE ASSETS:
Indefinite lived intangible assets	$ 1,764	$ 1,743
DEFINITE LIVED INTANGIBLE ASSETS:
Gross Amount	25,384	25,385
Accumulated Amortization	(16,789)	(16,789)
Net Amount	8,595	8,596
Total intangible assets, Gross Amount	27,148	27,128
Total intangible assets, Net Amount	10,359	10,339
Acquired ICFAs
DEFINITE LIVED INTANGIBLE ASSETS:
Gross Amount	17,978	17,978
Accumulated Amortization	(14,565)	(14,565)
Net Amount	3,413	3,413
Sonoran contract rights
DEFINITE LIVED INTANGIBLE ASSETS:
Gross Amount	7,406	7,407
Accumulated Amortization	(2,224)	(2,224)
Net Amount	5,182	5,183
CP Water Certificate of Convenience & Necessity service area
INDEFINITE LIVED INTANGIBLE ASSETS:
Indefinite lived intangible assets	1,532	1,532
Intangible trademark
INDEFINITE LIVED INTANGIBLE ASSETS:
Indefinite lived intangible assets	13	13
Franchise contract rights
INDEFINITE LIVED INTANGIBLE ASSETS:
Indefinite lived intangible assets	132	130
Organizational costs
INDEFINITE LIVED INTANGIBLE ASSETS:
Indefinite lived intangible assets	$ 87	$ 68