REGULATORY DECISION AND RELATED ACCOUNTING AND POLICY CHANGES - Additional Information (Details) $ in Thousands			1 Months Ended	6 Months Ended	12 Months Ended
	Jul. 27, 2022 USD ($)	Aug. 28, 2020 utility	Feb. 28, 2014	Jun. 30, 2022 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2021 USD ($)
Public Utilities, General Disclosures [Line Items]
Number of utilities to adjust revenue requirement | utility		12
Percentage of deferred revenue to be recorded on ICFA receipts			30.00%
Remaining performance obligation				$ 20,900		$ 19,000
Portion of future ICFA funds					0.30
Regulatory asset				$ 3,270		2,336
Regulatory assets, amortization period				25 years
Decrease in regulatory liabilities					$ (3,400)
Write off of capitalized interest				$ 300
Percentage of hook up fee liability to be recorded on ICFA receipts			70.00%	70.00%
Percentage reversal of regulatory liability					30.00%
Regulatory liability				$ 6,584		$ 7,421
Regulatory liability, TCJA rate reduction				700
Acquisition Premiums
Public Utilities, General Disclosures [Line Items]
Regulatory asset				800
Subsequent Event
Public Utilities, General Disclosures [Line Items]
Approved collective revenue increase	$ 2,200
Tax Cuts and Jobs Act
Public Utilities, General Disclosures [Line Items]
Decrease in regulatory liabilities				(800)
Reduction to income tax expense				700
Decrease in interest expense				100
ICFA revenues
Public Utilities, General Disclosures [Line Items]
Regulatory liability				7,900
Regulatory liability, offset of intangible assets				$ 5,900