TANGIBLE WATER ASSETS AND REAL ESTATE, NET (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Real Estate [Abstract]
Tangible water assets	$ 21,667	$ 26,546
Real estate and improvements held and used, net of accumulated amortization of $12,003 at December 31, 2021 and December 31, 2020	9,469	9,469
Other real estate inventories	3,359	3,359
Total tangible water and real estate assets, net	34,495	39,374
Accumulated amortization of real estate improvements held and used	$ 12,003	$ 12,003