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Accrued Liabilities
 3 Months Ended
Mar. 31, 2022
Payables and Accruals [Abstract]  
Accrued Liabilities Accrued Liabilities
Accrued liabilities consisted of the following:
(in thousands)March 31, 2022December 31, 2021
Accrued compensation
$4,916 $9,832 
Accrued charitable contributions
400 400 
Accrued medical claims
471 398 
Other
255 479 
Total accrued liabilities
$6,042 $11,109