Note 6 - Accounts Payable and Accrued Liabilities - Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Accounts payable	$ 30,029	$ 27,835
Accrued property taxes	2,897	2,529
Accrued payroll	5,014	2,413
Workers' compensation reserve	3,034	2,560
Group health insurance	1,800	1,800
Fair value of interest rate swaps	250	867
Other	4,702	3,524
Total accounts payable and accrued liabilities	$ 47,726	$ 41,528