Balance Sheets (USD $)	Mar. 31, 2012	Dec. 31, 2011
Assets:
Investment in joint ventures	$ 4,279,518	$ 4,239,485
Cash and cash equivalents	6,606,559	6,535,295
Due from joint ventures	35,793	132,459
Other assets	10,284	10,649
Total assets	10,932,154	10,917,888
Liabilities:
Accounts payable and accrued expenses	5,467	10,192
Due to affiliates	5,752	8,417
Total liabilities	11,219	18,609
Commitments and Contingencies
Partners' Capital:
Total partners’ capital	10,920,935	10,899,279
Total liabilities and partners’ capital	10,932,154	10,917,888
ClassA Limited Partners [Member]
Partners' Capital:
Limited Partners	10,817,796	10,731,553
Total partners’ capital	10,817,796	10,731,553
Class B Limited Partners [Member]
Partners' Capital:
Limited Partners	102,035	166,839
Total partners’ capital	102,035	166,839
General Partner [Member]
Partners' Capital:
General Partners	1,104	887
Total partners’ capital	$ 1,104	$ 887