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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)
9 Months Ended
Sep. 30, 2020
FAIR VALUE OF FINANCIAL INSTRUMENTS [Abstract]  
Carrying Amount and Fair Value of Long-Term Debt
All of Artesian Resources’ outstanding long-term debt as of September 30, 2020 and December 31, 2019 was fixed-rate.  The fair value of the Company’s long-term debt is determined by discounting its future cash flows using current market interest rates on similar instruments with comparable maturities consistent with FASB ASC 825.  Under the fair value hierarchy, the fair value of the long-term debt in the table below is classified as Level 2 measurements.  Level 2 is valued using observable inputs other than quoted prices.  The fair values for long-term debt differ from the carrying values primarily due to interest rates that differ from the current market interest rates.  The carrying amount and fair value of Artesian Resources' long-term debt (including current portion) are shown below:

In thousands
     
   
September 30, 2020
   
December 31, 2019
 
Carrying amount
 
$
144,466
   
$
145,862
 
Estimated fair value
 
$
175,754
   
$
157,710