NET INCOME (LOSS) PER COMMON SHARE - Additional Information (Details) - shares	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Potentially dilutive securities excluded from the computation of diluted net income (loss) per common share	383,000	947,000	911,000	947,000
Cumulative Redeemable Preferred Stock, Series E [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Preferred stock, dividend rate			7.50%	7.50%	7.50%