Note 5 - Accounts Payable and Accrued Liabilities (In Thousands) - Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Accounts payable	$ 52,491	$ 62,306
Accrued property taxes	3,008	1,917
Accrued payroll	7,373	5,933
Workers' compensation reserve	4,130	3,440
Group health insurance	2,300	2,250
Asset retirement obligation - current portion	3,580	3,580
Other	3,720	3,546
Total accounts payable and accrued liabilities	$ 76,602	$ 82,972