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GEOGRAPHIC CONCENTRATION OF CUSTOMERS	6 Months Ended
	Jun. 30, 2021
GEOGRAPHIC CONCENTRATION OF CUSTOMERS [Abstract]
GEOGRAPHIC CONCENTRATION OF CUSTOMERS	NOTE 15 - GEOGRAPHIC CONCENTRATION OF CUSTOMERS Artesian Water, Artesian Water Maryland and Artesian Water Pennsylvania provide water utility service to customers within their established service territory in all three counties of Delaware and in portions of Maryland and Pennsylvania, pursuant to rates filed with and approved by the DEPSC, the MDPSC and the PAPUC.  As of June 30, 2021, Artesian Water was serving approximately 90,900 customers, Artesian Water Maryland was serving approximately 2,500 customers and Artesian Water Pennsylvania was serving approximately 40 customers. Artesian Wastewater provides wastewater utility service to customers within its established service territory in Sussex County, Delaware pursuant to rates filed with and approved by the DEPSC.  As of June 30, 2021, Artesian Wastewater was serving approximately 3,000 customers, including one large industrial customer. All wastewater customers are located in Sussex County, Delaware.

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- Definition

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-URI http://asc.fasb.org/topic&trid=2134479

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