INTANGIBLE ASSETS

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

INTANGIBLE ASSETS

INTANGIBLE ASSETS

As of December 31, 2019 and 2018, intangible assets that will continue to be amortized and those not amortized were:

	Weighted Average Amortization Period (years)	2019						2018
		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	$	116	$	968	$	1,084	$	112	$	972
Water planning studies	13	18,476		12,950		5,526		18,364		11,899		6,465
Leasehold improvements and other	17	1,519		889		630		1,519		882		637
Total		$	21,079	$	13,955	$	7,124	$	20,967	$	12,893	$	8,074
Unamortized intangible assets:
Perpetual water rights and other		$	3,776	$	—	$	3,776	$	3,776	$	—	$	3,776

Water pumping rights usage is the amount of water pumped from aquifers to be treated and distributed to customers.

For the year ended December 31, 2019, 2018, and 2017, amortization of intangible assets was $1.5 million, $1.7 million, $1.6 million, respectively.

Estimated future amortization expense related to intangible assets are shown in the table below:

Year Ending December 31,	Estimated Future Amortization Expense Related to Intangible Assets
2020	$	958
2021	870
2022	747
2023	569
2024	446
Thereafter	3,534
Total	$	7,124