GENERAL (Details)	6 Months Ended
	Jun. 30, 2014 Squarefeet Subsidiary
Number of wholly owned subsidiaries	8
Number of subsidiaries not regulated	3
Artesian Development purchased area of office space (in square feet)	10,000
Artesian Development purchased area of warehouse space (in square feet)	10,000
Artesian Wastewater [Member]
Number of wastewater treatment facilities owned and operated	4
Capacity of wastewater treatment facilities, minimum (in gallons per day)	730,000
Capacity of waste water treatment facilities, maximum (in gallons per day)	1,600,000
Artesian Utility [Member]
Initial contract period of operating wastewater treatment facilities in Middletown (in years)	20 years
Number of wastewater treatment station facility operations in Middletown	2
Number of wastewater treatment facilities in Middletown providing reclaimed wastewater	1
Volume of water save by Artesian Water Management Partnership in Middletown, maximum (in gallons per day)	3,000,000
Number of Water Service Line Protection Plan customers	18,600
Number of Sewer Service Line Protection Plan customers	13,500
Percentage of Water Service Line Protection Plan customers signed up (in hundredths)	26.10%
Percentage Of Sewer Service Protection Plan customer signed up (in hundredths)	19.00%
Number of non-customers signed up with either Water Service Line Protection Plan or Service Line Protection Plan	1,000
Artesian Utility [Member] | Wastewater treatment facility first of two [Member]
Capacity of waste water treatment facilities, maximum (in gallons per day)	2,500,000
Artesian Utility [Member] | Wastewater treatment facility second of two [Member]
Capacity of waste water treatment facilities, maximum (in gallons per day)	250,000