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REGULATORY ASSETS (Details) - USD ($)	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Regulatory Assets [Abstract]
Contributions to postretirement benefit plan	$ 17,000
Amortization period of other regulatory expense [Abstract]
Depreciation and salary studies	5 years
Goodwill	50 years
Deferred acquisition costs	20 years
Franchise costs	80 years
Regulatory assets net of amortization, comprise [Abstract]
Regulatory assets, net	$ 6,933,000	$ 7,254,000
Maximum [Member]
Amortization period of other regulatory expense [Abstract]
Debt related cost	25 years
Minimum [Member]
Amortization period of other regulatory expense [Abstract]
Debt related cost	15 years
Postretirement Benefit Obligation [Member]
Regulatory assets net of amortization, comprise [Abstract]
Regulatory assets, net	$ 74,000	74,000
Deferred Income Taxes [Member]
Regulatory assets net of amortization, comprise [Abstract]
Regulatory assets, net	389,000	401,000
Debt Related Costs [Member]
Regulatory assets net of amortization, comprise [Abstract]
Regulatory assets, net	30,000	46,000
Expense of Rate and Regulatory Proceedings [Member]
Regulatory assets net of amortization, comprise [Abstract]
Regulatory assets, net	5,557,000	5,815,000
Goodwill [Member]
Regulatory assets net of amortization, comprise [Abstract]
Regulatory assets, net	290,000	295,000
Deferred Acquisition and Franchise Costs [Member]
Regulatory assets net of amortization, comprise [Abstract]
Regulatory assets, net	$ 593,000	$ 623,000

X

- Definition

Period over which regulatory noncurrent assets for goodwill is amortized on a straight-line basis.

+ References

No definition available.

+ Details

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X

- Definition

Represents amortization period of debt related cost.

+ References

No definition available.

+ Details

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X

- Definition

Period over which regulatory noncurrent asset for deferred acquisition costs amortized.

+ References

No definition available.

+ Details

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X

- Definition

Period over which regulatory noncurrent asset for deferred franchise costs amortized.

+ References

No definition available.

+ Details

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- References

No definition available.

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- References

No definition available.

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- Definition

Amount of cash outflow for pension and other postretirement benefits. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585

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X

- Definition

Amortization period for the recovery of regulatory asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382

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