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Condensed Balance Sheets (Parenthetical) (USD $)
Jun. 30, 2013
Dec. 31, 2012
Statement Of Financial Position [Abstract]    
Accumulated amortized leasing commissions $ 1,639,896 $ 1,749,117
Accumulated amortized mortgage refinancing costs 2,392,550 2,188,848
Participation units, outstanding 700 700
Amount of participation unit $ 10,000 $ 10,000