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INVESTMENTS (Tables)
 12 Months Ended
Dec. 31, 2021
INVESTMENTS  
Schedule of Marketable securities

Below is a summary of the amortized cost and estimated market values of the Company’s marketable securities as of December 31, 2021 and 2020. The estimated market values provided are Level 2 valuations as defined by ASC 820.

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2021

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2020

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Amortized Cost

    

Market Value

    

Amortized Cost

    

Market Value

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​

(Dollars in thousands)

Municipal bonds:

 

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​

  

 

​

  

 

​

  

Current

​

$

219

​

$

223

​

$

2,215

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$

2,249

Due from one through five years

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6,503

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6,805

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7,420

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7,830

Due from six through ten years

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2,479

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2,790

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3,057

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3,608

Due from eleven through twenty years

​

 

1,014

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1,102

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2,323

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2,547

Total

​

$

10,215

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$

10,920

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$

15,015

​

$

16,234
Schedule of Unrealized gains and losses on marketable securities

The unrealized gains and losses on marketable securities at December 31, 2021 and 2020 were as follows:

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2021

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2020

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Unrealized

    

Unrealized

    

Unrealized

    

Unrealized

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Gains

    

Losses

    

Gains

    

Losses

​

​

(Dollars in thousands)

Municipal bonds

​

$

705

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$

—

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$

1,219

​

$

—

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