Note 6 - Accounts Payable and Accrued Liabilities - Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Accounts payable	$ 31,099	$ 27,835
Accrued property taxes	2,006	2,529
Accrued payroll	4,792	2,413
Workers' compensation reserve	3,346	2,560
Group health insurance	2,250	1,800
Fair value of interest rate swaps	0	867
Other	4,480	3,524
Total accounts payable and accrued liabilities	$ 47,973	$ 41,528

Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.

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