Statements of Changes in Members’ Capital (USD $)	3 Months Ended				12 Months Ended
	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income	$ (331,000)	$ 625,000	$ (994,000)	$ (2,004,000)	$ (171,000)	$ (5,379,000)	$ (2,640,000)
SBSCapitalMember
Members' capital, Beginning		16,811,116		19,211,152	16,811,116	19,211,152	19,211,152
Distributions to members					(193,792)	(2,417,244)	(6,824,179)
Net income					1,579,176	17,208	8,372,112
Members' capital, Ending	$ 18,196,500		$ 16,811,116		$ 18,196,500	$ 16,811,116	$ 19,211,152