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Note 13 - Retirement Fund and Profit Sharing Plan (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Net Benefit Costs [Table Text Block]
  

Years Ended December 31,

 
  

2020

  

2019

 
         

Service Cost

 $600  $576 

Interest Cost

  636   739 

Net amortization

  343   192 

Net periodic benefit cost

 $1,579  $1,507 
Defined Benefit Plan, Plan with Projected Benefit Obligation in Excess of Plan Assets [Table Text Block]
  

Years Ended December 31,

 
  

2020

  

2019

 

Fair value of plan assets, January 1

 $-  $- 

Company contributions

  446   430 

Benefits paid

  (446)  (430)

Fair value of plan assets, December 31

 $-  $- 

Benefit obligation, January 1

 $21,541  $18,676 

Service cost

  600   576 

Interest cost

  636   739 

Benefits paid

  (446)  (430)

Plan amendments

  -   - 

Actuarial losses

  1,977   1,980 

Benefit obligation, December 31

 $24,308  $21,541 

Underfunded status, December 31

 $(24,308) $(21,541)
Schedule of Expected Benefit Payments [Table Text Block]

Years Ending

     

December 31,

     
      

2021

  $675 

2022

   919 

2023

   921 

2024

   959 

2025

   999 
2026 - 2030   5,642 
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
  

December 31,

 
  

2020

  

2019

 

Prior service cost

 $586  $738 

Net loss

  1,773   1,965 
  $2,359  $2,703 
Defined Benefit Plan, Assumptions [Table Text Block]
  

Years Ended December 31,

 
  

2020

  

2019

 

Net periodic benefit cost:

        

Discount rate

  3.00%  4.00%

Rate of compensation increase

  2.50%  2.50%

Benefit obligation:

        

Discount rate

  2.25%  3.00%

Rate of compensation increase

  2.50%  2.50%