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Note 5 - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

(In thousands)

 

2021

  

2020

  

2019

 

Current:

            

Federal

 $18,872  $21,312  $(1,210

)

State

  3,367   3,498   1,782 

Total current

  22,239   24,810   572 
             

Deferred:

            

Federal

  3,462   (1,557

)

  15,572 

State

  603   633   473 

Total deferred

  4,065   (924

)

  16,045 

Total expense (benefit)

 $26,304  $23,886  $16,617 
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
  

2021

  

2020

  

2019

 

Federal statutory income tax rate

  21

%

  21

%

  21

%

Increase in taxes arising from state income taxes, net of federal income tax benefit

  3   4   2 

Per diem and other non-deductible expenses

  -   1   1 

Federal tax credits

  -   (1

)

  (2

)

Other, net

  -   1   (1

)

Effective tax rate

  24

%

  26

%

  21

%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

(In thousands)

 

2021

  

2020

 

Deferred tax assets:

        

Reserves and accrued liabilities

 $11,975  $12,050 

Other

  1,597   1,768 
   13,572   13,818 

Deferred tax liabilities:

        

Depreciation

  135,306   131,650 

Prepaid expenses

  3,429   3,266 
   138,735   134,916 

Net deferred tax liability

 $125,163  $121,098