INVESTMENTS IN JOINT VENTURES - Summarized Financial Information - Statement of Operations (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Equity Method Investment, Summarized Financial Information [Abstract]
Total Revenues	$ 13,009,743	$ 10,688,831	$ 25,848,175	$ 21,648,150
Direct costs of revenues	2,625,097	1,674,849	6,262,558	3,653,504
Operating Income	10,773,190	14,632,126	11,062,387	24,634,840
Net Income	12,610,524	10,596,800	348,665	17,064,899
Land JV
Equity Method Investment, Summarized Financial Information [Abstract]
Total Revenues	680,000		7,826,000
Direct costs of revenues	269,000		3,375,000
Operating Income	411,000		4,451,000
Other Operating Expenses	137,000		274,000
Net Income	274,000		4,177,000
Mitigation Bank
Equity Method Investment, Summarized Financial Information [Abstract]
Total Revenues	12,000		1,878,000	47,000
Direct costs of revenues	1,000		81,000	4,000
Operating Income	11,000		1,797,000	43,000
Other Operating Expenses	72,000	56,000	148,000	127,000
Net Income	$ (61,000)	$ (56,000)	$ 1,649,000	$ (84,000)