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NON-UTILITY OPERATING REVENUE AND EXPENSES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Public Utility, Property, Plant and Equipment [Line Items]
Non-utility operating revenue	$ 4,398	$ 4,150	$ 3,974
Summary of non-utility operating expenses [Abstract]
Non-utility operating expenses	2,305	2,193	2,121
Artesian Utility [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Non-utility operating revenue	4,400	4,100	3,900
Summary of non-utility operating expenses [Abstract]
Non-utility operating expenses	2,260	2,147	2,052
Artesian Development [Member]
Summary of non-utility operating expenses [Abstract]
Non-utility operating expenses	$ 45	46	40
Artesian Resources [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Non-utility operating revenue		0	0
Summary of non-utility operating expenses [Abstract]
Non-utility operating expenses	$ 0	0	0
Artesian Consulting Engineers [Member]
Summary of non-utility operating expenses [Abstract]
Non-utility operating expenses	$ 0	$ 0	$ 29

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- References

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- Definition

The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Revenues from the sale of other goods or rendering of other services, not elsewhere specified in the taxonomy; net of (reduced by) sales adjustments, returns, allowances, and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(a),(d))
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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