Note 7 - Accounts and Notes Receivable - Components of Accounts and Notes Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Billed tenant receivables	$ 16,751	$ 25,428
Unbilled Common area maintenance, insurance and tax reimbursements	31,374	35,982
Deferred rent receivables	7,419	17,328
Other receivables	6,385	4,880
Straight-line rent receivables	138,192	135,630
Total accounts and notes receivable, net	$ 200,121	$ 219,248