PARTNERS' CAPITAL AND DISTRIBUTIONS (Details 2)	6 Months Ended							6 Months Ended
	Jun. 30, 2013 Total	Jun. 30, 2013 Total Institutional investors	Jun. 30, 2013 Total Equity Distribution Agreement	Jun. 30, 2013 Total Option Plan	Jun. 30, 2013 Total Long Term Incentive Plan 2009	Jun. 30, 2013 Limited Partners	Dec. 31, 2012 Limited Partners	Jun. 30, 2013 Limited Partners Institutional investors	Jun. 30, 2013 Limited Partners Equity Distribution Agreement	Jun. 30, 2013 Limited Partners Option Plan	Jun. 30, 2013 Limited Partners Long Term Incentive Plan 2009	Jun. 30, 2013 Class B Units
Partner's capital and distributions
Beginning Balance	98,346,000					97,795,000	90,371,000					7,975,000
LP Units issued				21,000	152,000					21,000	152,000
Issuance of units to institutional investors		6,900,000	351,000					6,900,000	351,000
Issuance of Class B Units in lieu of quarterly cash distributions	349,000											349,000
Ending Balance	106,119,000					97,795,000	90,371,000					8,324,000