CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (USD $) In Thousands, unless otherwise specified	Total	Preferred units issued	Accumulated Other Comprehensive Income (Loss) [Member]	Limited Partners	Common	Common Series A Preferred Stock [Member]	Subordinated	Subordinated Series A Preferred Stock [Member]	General Partner [Member]	General Partner [Member] Series A Preferred Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
BALANCE - December 31, 2013 at Dec. 31, 2012	$ 326,467		$ (477)		$ 194,365		$ 125,951		$ 6,628
Increase (Decrease) in Shareholders' Equity
Net loss	(6,382)		0	(6,254)	(3,127)		(3,127)		(128)
Unit-based compensation on long-term incentive plan	262		0		262		0		0
Series A preferred unit in-kind distribution	0
Cash distributions paid	(5,982)		0		(2,931)		(2,931)		(120)
Net effect of cash flow hedges	25		25		0		0		0
BALANCE - March 31, 2014 at Mar. 31, 2013	314,390		(452)		188,569		119,893		6,380
Increase (Decrease) in Shareholders' Equity
Contributions from general partner									800
BALANCE - March 31, 2014 at Jun. 30, 2013
BALANCE - December 31, 2013 at Dec. 31, 2013	275,024		(210)		169,141		99,726		6,367
Increase (Decrease) in Shareholders' Equity
Net loss	(1,289)		0	(1,764)	(757)		(506)		(26)
Unit-based compensation on long-term incentive plan	432		0		432		0		0
Series A preferred unit in-kind distribution		(501)	0			(281)		(210)	(502)	(11)
Contributions from general partner			0		0		0		3,115
Cash distributions paid	(13,755)		0		(8,581)		(4,885)		(289)
Accrued distribution on long-term incentive plan	(76)		0		(76)		0		0
LTIP tax withholdings on vested units	(1)		0		(1)		0		0
General partner unit in-kind distribution	0		0		(6)		(5)		11
Net effect of cash flow hedges	104		104		0		0		0
BALANCE - March 31, 2014 at Mar. 31, 2014	407,767		(106)		304,586		94,120		9,167
BALANCE - December 31, 2013 at Jan. 27, 2014
Increase (Decrease) in Shareholders' Equity
Issuance of common units, net					144,715		0		0		0
BALANCE - March 31, 2014 at Mar. 31, 2014					$ 304,586		$ 94,120		$ 9,167