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Supervisory Services - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Related Party Transaction [Line Items]          
Basic annual fee     $ 24,000    
Prior basic supervisory fee per month     2,000    
Additional Payment of distributions received by the Participants     10.00%    
Required rate of return on cash investment for Additional Payment     14.00%    
Original cash investment 7,000,000   7,000,000    
Supervisory service fees 49,134 48,478 98,269 96,956  
Advance against additional rent paid to Supervisors     7,380    
Professional fees, including amounts for services provided by related party 345,470 68,677 713,070 154,358  
Due from Supervisor 87,202   87,202   87,202
Effective July 1, 2010 [Member]
         
Related Party Transaction [Line Items]          
Increase in Basic Payment plus annual Consumer Price Index adjustment     180,000    
Effective July 1, 2012 [Member]
         
Related Party Transaction [Line Items]          
Increase in Basic Payment plus annual Consumer Price Index adjustment     189,158    
Supervisor [Member]
         
Related Party Transaction [Line Items]          
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     98,269 96,956  
Professional fees, including amounts for services provided by related party $ 8,458 $ 31,088 $ 91,729 $ 80,188