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Note 5 - Workers' Compensation Insurance and Reserves - Changes in Workers' Compensation Claims Liability (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Estimated future claims liabilities at the beginning of the period $ 8,249 $ 4,584
Claims paid during the period (3,936) (5,027)
Additional future claims liabilities recorded during the period 1,612 8,693
Estimated future claims liabilities at the end of the period $ 5,925 $ 8,249