XML 37 R26.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Note J - Fair Value of Financial Instruments (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
  

Total

  

Level 1

  

Level 2

  

Level 3

 
  

(in thousands)

 
                 

Marketable equity securities

 $45,789  $45,789   -   - 
Fair Value, by Balance Sheet Grouping [Table Text Block]
  

Carrying

Value

  

Estimated

Fair Value

 
  

(in thousands)

 
         

Long-term debt

 $271,562  $259,185