CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS (Sub-servicing Agreements with LEAF and Transaction between LEAF Financial and its Investment Entities) (Details) (USD $)	12 Months Ended		12 Months Ended
	Sep. 30, 2012 LEAF Commercial Capital Inc [Member]	Nov. 30, 2011 LEAF Commercial Capital Inc [Member] Maximum [Member]	Sep. 30, 2012 LEAF Financial, Inc. and LEAF Commercial Capital, Inc. [Member]	Sep. 30, 2011 LEAF Financial, Inc. and LEAF Commercial Capital, Inc. [Member]	Sep. 30, 2010 LEAF Financial, Inc. and LEAF Commercial Capital, Inc. [Member]	Sep. 30, 2011 LEAF Financial, Inc. [Member]	Sep. 30, 2010 LEAF Financial, Inc. [Member]	Sep. 30, 2012 LEAF Financial, Inc. [Member] Maximum [Member]
Related Party Transaction [Line Items]
Sub-servicing agreement fees as percent of net present value of loans and leases								1.00%
Evaluation fee equal to number of halves of acquisition or similar fee collected	50.00%
Origination fee, percentage		2.00%
Sales to related party			$ 1,500,000	$ 821,000	$ 65,900,000
Purchases from related party						$ 0	$ 6,000,000