INVESTMENTS IN OPERATING PARTNERSHIPS (Details) - Number	Sep. 30, 2016	Sep. 30, 2015
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	236	277
Series Twenty [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	3	4
Series Twenty One [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	2	2
Series Twenty Two [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	3	4
Series Twenty Three [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	5	7
Series Twenty Four [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	6	6
Series Twenty Five [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	4	4
Series Twenty Six [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	13	14
Series Twenty Seven [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	5	7
Series Twenty Eight [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	5	10
Series Twenty Nine [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	8	8
Series Thirty [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	8	9
Series Thirty One [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	17	18
Series Thirty Two [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	10	11
Series Thirty Three [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	5	5
Series Thirty Four [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	5	8
Series Thirty Five [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	5	7
Series Thirty Six [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	3	9
Series Thirty Seven [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	4	6
Series Thirty Eight [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	8	10
Series Thirty Nine [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	3	9
Series Forty [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	12	16
Series Forty One [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	18	18
Series Forty Two [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	15	15
Series Forty Three [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	19	19
Series Forty Four [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	7	8
Series Forty Five [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	28	28
Series Forty Six [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	15	15