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Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2023
Fair Value of Financial Instruments [Abstract]  
Fair Value of Interest Rate Swap
The Company has recorded its interest rate swap liability at fair value in accordance with the standards.  The liability is recorded under the caption “Other deferred credits” on the balance sheets.  The table below illustrates the fair value of the interest rate swap as of the end of the reporting period.

Description
 
December 31, 2023
 
Fair Value Measurements
at Reporting Date Using
Significant Other Observable Inputs (Level 2)
Interest Rate Swap
 
$632
 
$632

Fair values are measured as the present value of all expected future cash flows based on the swap yield curve as of the date of the valuation.  These inputs to this calculation are deemed to be Level 2 inputs.  The balance sheet carrying value reflects the Company’s credit quality as of December 31, 2023.  The rate used in discounting all prospective cash flows anticipated to be made under this swap reflects a representation of the yield to maturity for 30-year debt on utilities rated A- as of December 31, 2023.  The use of the Company’s credit quality resulted in a reduction in the swap liability of $17 as of December 31, 2023.  The fair value of the swap reflecting the Company’s credit quality as of December 31, 2022 is shown in the table below.

Description
 
December 31, 2022
 
Fair Value Measurements
at Reporting Date Using
Significant Other Observable Inputs (Level 2)
Interest Rate Swap
 
$680
 
$680