INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of intangible assets that will continue to be amortized and those not amortized

As of December 31, 2017 and 2016, intangible assets that will continue to be amortized and those not amortized were:

	Weighted Average Amortization Period (years)	2017						2016
		Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Amortized intangible assets:
Water pumping rights	usage	$	1,084	$	108	$	976	$	1,084	$	105	$	979
Water planning studies	11	15,922		10,306		5,616		15,734		9,307		6,427
Leasehold improvements and other	19	1,426		804		622		1,331		696		635
Total		$	18,432	$	11,218	$	7,214	$	18,149	$	10,108	$	8,041
Unamortized intangible assets:
Perpetual water rights and other		$	3,780	$	—	$	3,780	$	3,776	$	—	$	3,776