Supervisory Services - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Related Party Transaction [Line Items]
Basic fee payable at rate per annum			$ 40,000
Basic fee payable at rate per month			3,333
Increase in Basic Payment plus annual CPI adjustment			102,000
Minimum monthly payment for supervisory services			2,333
Additional monthly payment for supervisory services out of Primary Overage Rent payment			1,000
Additional Payment to Supervisor based on annual distributions to Participants			10.00%
Required rate of return on cash investment for additional payment			15.00%
Original cash investment	3,600,000		3,600,000
Additional payment made to supervisor					225,556
Due from Supervisor, a related party	60,000		60,000		60,000
Due to Supervisor, a related party	419,653		419,653		621,233
Supervisory fees			63,595	62,851
Remuneration paid by registrants			0	0
Professional fees including amounts to a related party	30,230	14,578	73,602	37,602
Due from Supervisor, a related party	60,000		60,000		60,000
Effective July 1, 2012 [Member]
Related Party Transaction [Line Items]
Increase in Basic Payment plus annual CPI adjustment			$ 107,190