Statements Of Changes In Members' Capital (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Beginning Balance	$ 7,292	$ 8,850	$ 8,850
Distributions to Other Members			(3,186)
Distributions to Managing Member			(258)
Net income	578	422	1,886
Ending Balance	7,870		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			(3,186)
Net income	578		1,628
Ending Balance (in units)	13,560,188		13,560,188
Ending Balance	$ 7,870		$ 7,292