INVESTMENTS IN JOINT VENTURES - Summarized Financial Information - Statement of Operations (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Equity Method Investment, Summarized Financial Information [Abstract]
Total Revenues	$ 14,571,974	$ 11,329,979	$ 40,420,149	$ 32,978,129
Direct costs of revenues	5,274,458	1,484,772	11,537,016	5,138,276
Operating Income	1,484,213	5,484,975	12,546,600	30,119,815
Net Income	(1,521,504)	1,486,020	(1,172,839)	18,550,919
Land JV
Equity Method Investment, Summarized Financial Information [Abstract]
Total Revenues	46,051,000		53,877,000
Direct costs of revenues	8,377,000		11,752,000
Operating Income	37,674,000		42,125,000
Other Operating Expenses	105,000		379,000
Net Income	37,569,000		41,746,000
Mitigation Bank
Equity Method Investment, Summarized Financial Information [Abstract]
Total Revenues	1,481,000		3,359,000	47,000
Direct costs of revenues	58,000		139,000	4,000
Operating Income	1,423,000		3,220,000	43,000
Other Operating Expenses	12,000	36,000	159,000	162,000
Net Income	$ 1,411,000	$ (36,000)	$ 3,061,000	$ (119,000)