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Note 13 - Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2023
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
  

September 30, 2023

  

December 31, 2022

 
  

Carrying Value

  

Fair Value

  

Carrying Value

  

Fair Value

 

Notes payable, net (1)

 $6,772,111  $5,758,369  $6,780,969  $5,837,401 

Mortgages payable, net (2)

 $356,899  $322,664  $376,917  $311,659 
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]
  

Balance at

September 30, 2023

  

Level 1

  

Level 2

  

Level 3

 

Assets:

                

Marketable equity securities

 $327,135  $327,135  $-  $- 

Liabilities:

                

Embedded derivative liability

 $63,000  $-  $-  $63,000 
  

Balance at

December 31, 2022

  

Level 1

  

Level 2

  

Level 3

 

Assets:

                

Marketable equity securities

 $597,732  $597,732  $-  $- 

Liabilities:

                

Embedded derivative liability

 $56,000  $-  $-  $56,000 
  

Balance at

September 30, 2023

  

Level 1

  

Level 2

  

Level 3

 
                 

Real estate

 $11,724  $-  $-  $11,724 
Convertible Non-convertible Units [Table Text Block]

Type

 

Par Value Per Unit

 

Number of Units Remaining

 

Return Per Annum

Preferred Outside Partner Units

$

20.00

 

6,104,831

 

3.75%

Common Outside Partner Units

$

20.00

 

678,306

 

Equal to the Company’s common stock dividend

Schedule of Derivative Liabilities at Fair Value [Table Text Block]
  

Fair Value of Embedded

Derivative Liability

 

Balance as of January 1, 2023

 $56,000 

Change in fair value (included in Other income, net)

  7,000 

Balance as of September 30, 2023

 $63,000