INVESTMENTS IN OPERATING PARTNERSHIPS (Details 2) (USD $)	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Operating Partnership Interest Transferred	1	6
Sale of Underlying Operating Partnership	0	1
Fund Proceeds from Disposition	$ 0	$ 247,315	[1]
Gain/(Loss) on Disposition	0	249,099
Series Fifteen [Member]
Operating Partnership Interest Transferred	0	1
Sale of Underlying Operating Partnership	0	0
Fund Proceeds from Disposition	0	0	[1]
Gain/(Loss) on Disposition	0	0
Series Sixteen [Member]
Operating Partnership Interest Transferred	0	2
Sale of Underlying Operating Partnership	0	0
Fund Proceeds from Disposition	0	78,000	[1]
Gain/(Loss) on Disposition	0	79,784
Series Seventeen [Member]
Operating Partnership Interest Transferred	0	3
Sale of Underlying Operating Partnership	0	1
Fund Proceeds from Disposition	0	169,315
Gain/(Loss) on Disposition	0	169,315
Series Eighteen [Member]
Operating Partnership Interest Transferred	0	0
Sale of Underlying Operating Partnership	0	0
Fund Proceeds from Disposition	0	0
Gain/(Loss) on Disposition	0	0
Series Nineteen [Member]
Operating Partnership Interest Transferred	1	0
Sale of Underlying Operating Partnership	0	0
Fund Proceeds from Disposition	0	0
Gain/(Loss) on Disposition	$ 0	$ 0

[1] Fund proceeds from disposition does not include the following amount which was due to a writeoff of capital contribution payable of $1,784 for Series 16.