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Net Periodic Pension Cost (Tables)
3 Months Ended
Mar. 31, 2022
Net Periodic Pension Cost [Abstract]  
Schedule of Net Benefit Costs

The following table details the net periodic pension cost incurred by period (in thousands):

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​

​

​

​

​

​

​

​

Three Months Ended

​

 

March 31, 

​

    

2022

    

2021

Interest cost

 

$

75

 

$

68

Amortization of net loss

​

​

27

​

​

43

Expected return on plan assets

​

​

(191)

​

​

(177)

Net periodic pension cost

 

$

(89)

 

$

(66)

Contributed amount

 

$

—

 

$

—