Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenues:
Property revenues	$ 8,081,029	$ 9,074,805
Investment income	50,222,435	51,479,641
Contingent interest income	3,045,462	9,322,849
Other interest income	851,123	7,636,226
Other income	117,964	3,842,055
Total revenues	62,318,013	81,355,576
Expenses:
Real estate operating (exclusive of items shown below)	4,473,558	5,300,296
Impairment of securities		1,141,020
Impairment charge on real estate assets	75,000	150,000
Depreciation and amortization	3,091,417	3,556,265
Interest expense	24,717,294	24,863,056
General and administrative	15,564,403	13,082,023
Total expenses	47,921,672	48,092,660
Other Income:
Gain on sales of real estate assets, net		4,051,429
Gain on sale of investments in unconsolidated entities	16,141,797	2,904,087
Income before income taxes	30,538,138	40,218,432
Income tax expense (benefit)	45,987	(921,097)
Net income	30,492,151	41,139,529
Redeemable Series A Preferred Unit distributions and accretion	(2,871,051)	(2,871,050)
Net income available to Partners	27,621,100	38,268,479
Net income available to Partners allocated to:
General Partner	2,102,874	2,285,943
Net income available to Partners and noncontrolling interest	$ 27,621,100	$ 38,268,479
BUC holders' interest in net income per BUC, basic and diluted	$ 0.42	$ 0.60
Weighted average number of BUCs outstanding, basic	60,551,775	60,028,120
Weighted average number of BUCs outstanding, diluted	60,551,775	60,028,120
Beneficial Unit Certificate Holders [Member]
Net income available to Partners allocated to:
Limited Partners	$ 25,423,398	$ 35,755,806
Restricted Unitholders [Member]
Net income available to Partners allocated to:
Limited Partners	$ 94,828	$ 226,730