Statements of Changes in Members' Capital (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Beginning Balance		$ 7,292	$ 8,850	$ 8,850
Distributions to Other Members ($0.24 per Unit)				(3,186)
Distributions to Managing Member				(258)
Net income	2,089	2,667	928	1,886
Ending Balance	9,959	9,959		7,292
Managing Member [Member]
Distributions to Managing Member				(258)
Net income				258
Other Members [Member]
Beginning Balance (in units)		13,560,188	13,560,188	13,560,188
Beginning Balance		7,292	8,850	8,850
Distributions to Other Members ($0.24 per Unit)				(3,186)
Net income		2,667		1,628
Ending Balance (in units)	13,560,188	13,560,188		13,560,188
Ending Balance	$ 9,959	$ 9,959		$ 7,292