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Condensed Statements of Income (Unaudited) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Condensed Statements of Income [Abstract]    
RENTAL REVENUES $ 179,443 $ 182,124
EXPENSES:    
General and administrative 37,824 38,078
Depreciation 7,237 7,237
Total expenses 45,061 45,315
Operating income 134,382 136,809
OTHER INCOME:    
Interest 59 62
Other 200 400
Net income $ 134,641 $ 137,271
Net income per limited partnership unit (Note 2) 15.23 15.53
Number of units used in computing per unit amounts 8,751 8,751