Note 12 - Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Fair Value, by Balance Sheet Grouping [Table Text Block]

	September 30, 2019				December 31, 2018
	Carrying Value		Fair Value		Carrying Value		Fair Value
Notes payable, net (1)	$	4,829,996	$	5,000,047	$	4,381,456	$	4,126,450
Mortgages and construction loan payable, net (2)	$	482,632	$	486,076	$	492,416	$	486,341

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

	Balance at September 30, 2019		Level 1		Level 2	Level 3
Marketable equity securities	$	10,001	$	10,001	$	$	-

	Balance at December 31, 2018		Level 1		Level 2		Level 3
Marketable equity securities	$	9,045	$	9,045	$	-	$	-

	Balance at September 30, 2019		Level 1		Level 2		Level 3
Real estate	$	138,489	$	-	$	-	$	138,489
Other real estate investments	$	22,202	$	-	$	-	$	22,202

	Balance at December 31, 2018		Level 1		Level 2		Level 3
Real estate	$	99,693	$	-	$	-	$	99,693
Investments in real estate joint ventures (1)	$	62,429	$	-	$	-	$	62,429