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INVESTMENTS (Tables)
12 Months Ended
Dec. 31, 2025
INVESTMENTS  
Schedule of marketable securities

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​

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​

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​

​

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​

​

2025

​

2024

​

Amortized

  ​ ​ ​

Market

  ​ ​ ​

Amortized

  ​ ​ ​

Market

​

Cost

  ​ ​ ​

Value

  ​ ​ ​

Cost

  ​ ​ ​

Value

​

(Dollars in thousands)

Marketable securities:

​

  ​

 

​

  ​

 

​

  ​

 

​

  ​

Current

$

1,425

​

$

1,424

​

$

852

​

$

848

Due from one through five years

 

1,726

​

 

1,730

​

 

2,692

​

 

2,677

Due from six through ten years

 

1,734

​

 

1,694

​

 

2,837

​

 

2,749

Total

$

4,885

​

$

4,848

​

$

6,381

​

$

6,274

Schedule of unrealized gains and losses on marketable securities

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2025

​

2024

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Unrealized

  ​ ​ ​

Unrealized

  ​ ​ ​

Unrealized

  ​ ​ ​

Unrealized

​

Gains

  ​ ​ ​

Losses

  ​ ​ ​

Gains

  ​ ​ ​

Losses

​

(Dollars in thousands)

Marketable securities

$

9

​

$

(46)

​

$

5

​

$

(112)