Related party transactions (Details) (USD $)	3 Months Ended
	Mar. 31, 2013
Interest expense,	$ (219)
Pillar
Cash transfers	18,644
Advisory fees	(2,138)
Net income fee	(56)
Fees and commissions	(1,516)
Cost reimbursements	(603)
POA fees	(31)
Expenses paid by advisor	(2,008)
Financing (mortgage payments)	123
Purchase of obligations	(12,415)
ARI
Interest expense,	(79)
Purchase of obligations	12,336
Total6Member
Cash transfers	18,644
Advisory fees	(2,138)
Net income fee	(56)
Fees and commissions	(1,516)
Cost reimbursements	(603)
Interest expense,	(79)
POA fees	(31)
Expenses paid by advisor	(2,008)
Financing (mortgage payments)	123
Purchase of obligations	$ (79)