INCOME TAXES - Narrative (Details) - USD ($)		3 Months Ended								12 Months Ended
	Mar. 08, 2017	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Sep. 30, 2016
Income Tax Disclosure [Line Items]
Decrease in deferred tax asset											$ 364,000
AMT Credit		$ 0				$ 19,000				$ 0	$ 19,000
Percent of valuation allowance (percentage)											100.00%
Net income (loss)		350,000	$ 4,353,000	$ (21,490,000)	$ 11,315,000	8,891,000	$ (4,256,000)	$ (2,297,000)	$ 2,369,000	(5,471,462)	$ 4,706,961
Net operating loss carryforwards		1,000,000				$ 1,300,000				1,000,000	1,300,000
Accrued tax liability from REIT Testing		$ 1,960,000								1,960,000
Internal Revenue Service (IRS)
Income Tax Disclosure [Line Items]
Income taxes, interest provision												$ 1,860,000	$ 1,860,000
Interest paid	$ 2,010,000								2,010,000
Income taxes, interest expense	$ 150,000								$ 150,000
Subsidiaries
Income Tax Disclosure [Line Items]
Net income (loss)										$ 1,291,000	$ 62,000