CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common stock	Capital in excess of par value	Cumulative net income	Cumulative dividends	Accumulated other comprehensive income/(loss)	UHT Shareholders' Equity
Balance at Dec. 31, 2013	$ 165,630	$ 128	$ 220,691	$ 480,044	$ (535,176)	$ (57)	$ 165,630
Balance, Shares at Dec. 31, 2013		12,859
Shares of Beneficial Interest:
Issued (in shares)		443
Issued	19,844	$ 5	19,839				19,844
Partial settlement of dividend equivalent rights	(94)		(94)				(94)
Restricted stock-based compensation expense	399		399				399
Dividends ($2.60/share) in 2016, and ($2.56/share) in 2015 ($2.52/share) in 2014	(32,718)				(32,718)		(32,718)
Comprehensive income:
Net income	51,551			51,551			51,551
Unrealized gain (loss) on interest rate cap	(31)					(31)	(31)
Subtotal - comprehensive income	51,520			51,551		(31)	51,520
Balance at Dec. 31, 2014	204,581	$ 133	240,835	531,595	(567,894)	(88)	204,581
Balance, Shares at Dec. 31, 2014		13,302
Shares of Beneficial Interest:
Issued (in shares)		25
Issued	513		513				513
Partial settlement of dividend equivalent rights	(75)		(75)				(75)
Restricted stock-based compensation expense	427		427				427
Dividends ($2.60/share) in 2016, and ($2.56/share) in 2015 ($2.52/share) in 2014	(34,089)				(34,089)		(34,089)
Comprehensive income:
Net income	23,691			23,691			23,691
Unrealized gain (loss) on interest rate cap	(6)					(6)	(6)
Subtotal - comprehensive income	23,685			23,691		(6)	23,685
Balance at Dec. 31, 2015	195,042	$ 133	241,700	555,286	(601,983)	(94)	195,042
Balance, Shares at Dec. 31, 2015		13,327
Shares of Beneficial Interest:
Issued (in shares)		272
Issued	13,508	$ 3	13,505				13,508
Partial settlement of dividend equivalent rights	(30)		(30)				(30)
Restricted stock-based compensation expense	481		481				481
Dividends ($2.60/share) in 2016, and ($2.56/share) in 2015 ($2.52/share) in 2014	(35,138)				(35,138)		(35,138)
Comprehensive income:
Net income	17,215			17,215			17,215
Unrealized gain (loss) on interest rate cap	199					199	199
Subtotal - comprehensive income	17,414			17,215		199	17,414
Balance at Dec. 31, 2016	$ 191,277	$ 136	$ 255,656	$ 572,501	$ (637,121)	$ 105	$ 191,277
Balance, Shares at Dec. 31, 2016		13,599