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STOCK-BASED COMPENSATION (Tables)
3 Months Ended
Mar. 31, 2022
STOCK-BASED COMPENSATION  
Schedule of recognized stock-based compensation expense

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Three Months Ended

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March 31, 

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March 31, 

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2022

    

2021

    

Restricted stock

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$

1,155

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$

533

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Performance stock

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631

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364

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Stock appreciation rights

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332

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430

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Stock options

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6

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17

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Total stock-based compensation expense

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$

2,124

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$

1,344

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Schedule of stock-based compensation awards

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Three Months Ended

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March 31, 

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March 31, 

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2022

    

2021

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(Number of shares)

Performance stock (at maximum 200% attainment)

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39,380

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—

Restricted stock

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28,220

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—

Total equity awards granted

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67,600

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​

—

Schedule of unrecognized compensation expense

As of March 31, 2022, unrecognized compensation expense (expressed in thousands below) and weighted-average vesting period for each of our stock-based compensation awards were as follows:

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Unrecognized

    

Weighted-

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compensation

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average vesting

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expense

    

period (years)

Restricted stock

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$

9,377

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2.6

Performance stock

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6,760

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2.5

Stock appreciation rights

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1,296

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1.2

Stock options

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43

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1.3