Note 5 - Accounts Payable and Accrued Liabilities (In Thousands) - Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Accounts payable	$ 43,636	$ 62,306
Accrued property taxes	2,987	1,917
Accrued payroll	6,575	5,933
Workers' compensation reserve	3,629	3,440
Group health insurance	2,300	2,250
Asset retirement obligation - current portion	2,150	3,580
Other	1,631	3,546
Total accounts payable and accrued liabilities	$ 62,908	$ 82,972