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Note 6 - Other Assets - Other Assets (Details) - USD ($)
Jun. 30, 2023
Dec. 31, 2022
Investment in marketable securities $ 759,600 $ 797,749
Total other assets 16,831,150 23,968,241
Other Assets [Member]    
Deferred rent receivable 1,881,839 1,641,831
Investment in marketable securities 759,600 797,749
Prepaid expenses, deposits and other 725,096 619,621
Notes receivable 316,374 316,374
Accounts receivable, net 447,490 67,780
Right-of-use assets, net 30,926 45,843
Other intangibles, net 0 22,483
Total other assets $ 4,161,325 $ 3,511,681