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Income taxes (Tables)
9 Months Ended
Sep. 30, 2025
Income taxes [Abstract]  
Schedule of Income taxes

Three months ended

Nine months ended

September 30, 

September 30, 

    

2024

    

2025

    

2024

    

2025

(In thousands)

Expected tax expense, at the U.S. federal statutory
  income tax rate of 21%

$

963

$

1,167

$

3,339

$

4,088

State income taxes

 

134

 

157

 

467

 

548

Other, net

 

9

 

15

 

17

 

27

Total provision for income taxes

$

1,106

$

1,339

$

3,823

$

4,663

Comprehensive provision for income taxes allocable to:

Net income

$

1,106

$

1,339

$

3,823

$

4,663

Other comprehensive loss - marketable securities

(1)

(1)

Total

$

1,105

$

1,339

$

3,822

$

4,663