Note Receivable - Additional Information (Detail) (USD $)	0 Months Ended			1 Months Ended		3 Months Ended	6 Months Ended
	Nov. 12, 2009	Nov. 15, 2009	Sep. 30, 2009	Jan. 31, 2013	Oct. 31, 2012	Dec. 31, 2009	Jun. 30, 2013 Note	Dec. 31, 2012	Oct. 19, 2012	Dec. 01, 2009
Receivables Net [Line Items]
Sale price of property	$ 450,000	$ 450,000	$ 520,000
Amount paid by buyer	150,000
Promissory note term						3 years
Buyer's Note, interest rate										7.25%
Buyer's Note, principal amortized period						10 years
Partnership amended the Buyers note amounted, principal									200,000
Partnership amended the Buyers note amounted									232,777
Period of amortization							5 years
Amount of full balloon payment due							133,396
Original Balloon Payment Due Date							Nov. 01, 2012
Interest rate of amortized amount							7.25%
Principal payment received					32,777
Escrow property taxes				925
Property tax escrow cash balance							30,660	25,427
Penalty for early payment of principal							0
Buyer's Note amortization schedule, monthly payments							3,916
Number of note payments							6
Amortized principal payments receivable							180,697	197,292
Partnership [Member]
Receivables Net [Line Items]
Amended Balloon Payment Due Date							Nov. 01, 2014
Property tax escrow cash balance							5,699
Principal payments							16,595
Interest payments							6,903
Promissory note ("Buyers Note") [Member]
Receivables Net [Line Items]
Amount paid by buyer	$ 300,000