Supervisory Services - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Related Party Transaction [Line Items]
Percentage in excess of remaining cash investment	14.00%		14.00%
Cash investment	$ 7,000,000		$ 7,000,000
Advance against additional rent paid to supervisors			7,380
Accrued supervisory fees	0		0		81,265
Supervisory service fees	49,134	48,478	146,090	142,168
Remuneration to members			0	0
Professional fees, including amounts for services provided by related party	339,088	108,832	493,446	193,499
Due from Supervisor	5,706,265		5,706,265
Supervisor [Member]
Related Party Transaction [Line Items]
Prior basic supervisory fee per annual			24,000
Prior basic supervisory fee per month			2,000
Increase in supervisor fees			180,000
Additional payment to supervisor			10.00%
Advance against additional rent paid to supervisors			7,380
Due to Related Parties	657,430		657,430		922,728
Due from Supervisor	87,202		87,202		87,202
Supervisor [Member] | Minimum [Member]
Related Party Transaction [Line Items]
Monthly basic supervisory fees			2,000
Registrant [Member]
Related Party Transaction [Line Items]
Supervisory service fees			146,090	142,168
Professional fees, including amounts for services provided by related party	$ 92,804	$ 49,582	$ 172,991	$ 96,750