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Note 8 - Accrued Retirement Benefits (Tables)
6 Months Ended
Jun. 30, 2024
Notes Tables  
Schedule of Defined Benefit Plans Disclosures [Table Text Block]
  

June 30,

  

December 31,

 
  

2024

  

2023

 
  

(unaudited)

  

(audited)

 
  

(in thousands)

 
         

Defined benefit pension plan

 $(53) $(33)

Non-qualified retirement plans

  1,701   1,725 

Total

  1,648   1,692 

Less current portion

  (142)  (142)

Non-current portion of accrued retirement benefits

 $1,506  $1,550 
Schedule of Net Benefit Costs [Table Text Block]
  

Three Months Ended June 30,

(unaudited)

  

Six Months Ended June 30,

(unaudited)

 
  

2024

  

2023

  

2024

  

2023

 
  

(in thousands)

  

(in thousands)

 
                 

Interest cost

 $184  $203  $368  $406 

Expected return on plan assets

  (174)  (164)  (348)  (328)

Amortization of net loss

  68   82   136   165 

Pension and other postretirement expenses

 $78  $121  $156  $243