ORGANIZATION AND BASIS OF PRESENTATION - Comparative Amounts (Details) $ in Thousands, CAD in Millions	Sep. 30, 2015 CAD	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2013 USD ($)
Notes receivable, related parties	CAD 2.9		$ 2,300	$ 2,300	$ 0
Total current assets		$ 64,562			61,464
Total assets		141,405			151,180
General partner units		(120)			12
Accumulated other comprehensive income (loss)		179			(18)
Total partners' capital		33,810			38,195	$ 9,707
Total liabilities and partners' capital		141,405			151,180
Accumulated other comprehensive income (loss)
Total partners' capital		179			(18)	$ (793)	$ (1,400)
General Partner
Total partners' capital		(120)			12
Subordinated Units
Limited partners' capital account		(93,491)			(90,214)
Common Units
Limited partners' capital account		$ 125,449			127,865
As reported
Notes receivable, related parties					2,472
Total current assets					63,936
Total assets					153,652
General partner units					103
Accumulated other comprehensive income (loss)					(105)
Total partners' capital					40,667
Total liabilities and partners' capital					153,652
As reported | Subordinated Units
Limited partners' capital account					(87,978)
As reported | Common Units
Limited partners' capital account					128,097
Restatement adjustments
Notes receivable, related parties					(2,472)
Total current assets					(2,472)
Total assets					(2,472)
Total partners' capital					(2,472)
Total liabilities and partners' capital					(2,472)
Restatement adjustments | Accumulated other comprehensive income (loss)
Accumulated other comprehensive income (loss)					87
Restatement adjustments | General Partner
General partner units					(91)
Restatement adjustments | Subordinated Units
Limited partners' capital account					(2,236)
Restatement adjustments | Common Units
Limited partners' capital account					$ (232)