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Note 11 - Retirement Plans (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedule of Net Funded Status [Table Text Block]
   

December 31,

 
   

2022

   

2021

 

Change in projected benefit obligation:

               

Projected benefit obligation at beginning of year

  $ 140     $ 151  

Interest cost

    4       4  

Actuarial (gain) loss

    (38 )     (11 )

Benefits paid

    (4 )     (4 )

Projected benefit obligation at end of year

  $ 102     $ 140  
                 

Change in plan assets:

               

Fair value of pension plan assets at beginning of year

  $ 119     $ 108  

Actual return on plan assets

    (14 )     12  

Company contributions

    4       4  

Benefits paid

    (5 )     (5 )

Fair value of pension plan assets at end of year

    104       119  

Funded status of pension plan

  $ 2     $ (21 )
                 

Amounts recognized on our balance sheets consist of:

               

Accrued benefit cost

  $ 21     $ 15  

Accumulated other comprehensive loss

    (19 )     (36 )

Net asset (liability) recognized

  $ 2     $ (21 )
Defined Benefit Plan, Assumptions [Table Text Block]
   

Year Ended December 31,

 
   

2022

   

2021

 

Weighted-average assumptions used to determine net periodic benefit cost for the Gray Pension Plan:

               

Discount rate

    2.73 %     2.38 %

Expected long-term rate of return on pension plan assets

    6.25 %     6.25 %

Estimated rate of increase in compensation levels

    N/A       N/A  
   

As of December 31,

 
   

2022

   

2021

 

Weighted-average assumptions used to determine benefit obligations:

               

Discount rate

    4.99 %     2.73 %
Schedule of Net Benefit Costs [Table Text Block]
   

Year Ended December 31,

 
   

2022

   

2021

   

2020

 

Components of net periodic pension cost:

                       

Interest cost

  $ 4     $ 4     $ 4  

Expected return on plan assets

    (8 )     (7 )     (6 )

Recognized net actuarial loss

    1       1       1  

Net periodic pension benefit

  $ (3 )   $ (2 )   $ (1 )
Schedule of Expected Benefit Payments [Table Text Block]

Years

   

Amount

 

2023

    $ 5  

2024

      5  

2025

      5  

2026

      6  

2027

      6  

2028

  -    2032       32  
Schedule of Allocation of Plan Assets by Asset Category [Table Text Block]
   

As of December 31,

 
   

2022

   

2021

 

Asset category:

               

Insurance general account

    14 %     13 %

Cash management accounts

    4 %     2 %

Equity accounts

    51 %     50 %

Fixed income accounts

    28 %     33 %

Real estate accounts

    3 %     2 %

Total

    100 %     100 %
Schedule of Allocation of Plan Assets [Table Text Block]
   

Target Range

 

Asset class:

 

Strategic Allocation

   

Lower Limit

   

Upper Limit

 

Equities:

                       

Large Cap Blend

    27.0 %     0.0 %     50.0 %

Mid Cap Blend

    10.0 %     0.0 %     40.0 %

Small Cap Blend

    6.0 %     0.0 %     25.0 %

Foreign Large Blend

    11.0 %     0.0 %     40.0 %

Emerging Markets

    3.0 %     0.0 %     25.0 %

Real Estate

    3.0 %     0.0 %     20.0 %

Fixed Income:

                       

U.S. Treasury Inflation Protected

    3.5 %     0.0 %     25.0 %

Intermediate Core Plus Bond

    25.0 %     0.0 %     50.0 %

Short-Term Bond

    3.0 %     0.0 %     25.0 %

Bank Loan

    0.0 %     0.0 %     25.0 %

High Yield Bond

    4.0 %     0.0 %     25.0 %

Emerging Markets Bond

    3.0 %     0.0 %     20.0 %

Money Market Taxable

    1.5 %     0.0 %     100.0 %
Defined Benefit Plan, Fair Value of Plan Assets [Table Text Block]
   

As of December 31, 2022

 
   

Level 1

   

Level 2

   

Level 3

   

Total

 

Assets:

                               

Insurance general account

  $ -     $ 15     $ -     $ 15  

Cash management accounts

    4       -       -       4  

Equity accounts

    53       -       -       53  

Fixed income accounts

    29       -       -       29  

Real estate accounts

    3       -       -       3  

Total

  $ 89     $ 15     $ -     $ 104  
   

As of December 31, 2021

 
   

Level 1

   

Level 2

   

Level 3

   

Total

 

Assets:

                               

Insurance general account

  $ -     $ 15     $ -     $ 15  

Cash management accounts

    3       -       -       3  

Equity accounts

    59       -       -       59  

Fixed income account

    39       -       -       39  

Real estate accounts

    3       -       -       3  

Total

  $ 104     $ 15     $ -     $ 119