BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Involuntary Conversion of Assets(Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions		12 Months Ended
	Mar. 22, 2016	Apr. 30, 2016
GAIN ON BARGAIN PURCHASE [Abstract]
Gain on bargain purchase		$ 3,424
187 unit - Avalon Cove - Rochester, MN [Member]
GAIN ON BARGAIN PURCHASE [Abstract]
Fair value at acquisition	$ 36,300
Cash consideration	$ 15,000
Units issued, acquisitions	2.5
Value of units issued, acquisitions	$ 17,800
Share price on acquisition date	$ 7.09
Gain on bargain purchase	$ 3,400