EQUITY AND MEZZANINE EQUITY - Equity Awards (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Equity
Preferred shares of beneficial interest, shares outstanding (in shares)	4,118,000		4,118,000
Noncontrolling interests - operating partnership (in shares)	1,365,000		1,368,000
Common stock outstanding (in shares)	11,768,000		11,942,000
2015 Incentive Plan
Equity
Equity awards issued (in shares)	207	1,084
Total grant-date value shares issued	$ 10	$ 62