STOCK OPTIONS AND WARRANTS - Changes in warrants outstanding and related prices (Details) (Warrants, USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Class of Warrant or Right [Line Items]
Number Outstanding	945,166	983,894	764,011
Dollar 2.40
Class of Warrant or Right [Line Items]
Exercise Price	$ 2.40
Number Outstanding	33,333
Warrants Outstanding Remaining Contractual Life (Years)	11 months 1 day
Weighted Average Exercise Price	2.40
Weighted Average Exercisable	33,333
Exercisable Weighted Average Exercise Price	2.40
Dollar 2.64
Class of Warrant or Right [Line Items]
Exercise Price	$ 2.64
Number Outstanding	8,514
Warrants Outstanding Remaining Contractual Life (Years)	2 years 9 months 15 days
Weighted Average Exercise Price	2.64
Weighted Average Exercisable	8,514
Exercisable Weighted Average Exercise Price	2.64
Dollar 2.85
Class of Warrant or Right [Line Items]
Exercise Price	$ 2.85
Number Outstanding	63,159
Warrants Outstanding Remaining Contractual Life (Years)	3 years 9 months 15 days
Weighted Average Exercise Price	2.85
Weighted Average Exercisable	63,159
Exercisable Weighted Average Exercise Price	2.85
Dollar 3.32
Class of Warrant or Right [Line Items]
Exercise Price	$ 3.32
Number Outstanding	3,769
Warrants Outstanding Remaining Contractual Life (Years)	3 years 3 months 7 days
Weighted Average Exercise Price	3.32
Weighted Average Exercisable	3,769
Exercisable Weighted Average Exercise Price	3.32
Dollar 4.26
Class of Warrant or Right [Line Items]
Exercise Price	$ 4.26
Number Outstanding	16,667
Warrants Outstanding Remaining Contractual Life (Years)	3 months 26 days
Weighted Average Exercise Price	4.26
Weighted Average Exercisable	16,667
Exercisable Weighted Average Exercise Price	4.26
Dollar 5.40
Class of Warrant or Right [Line Items]
Exercise Price	$ 5.40
Number Outstanding	115,000
Warrants Outstanding Remaining Contractual Life (Years)	1 year 11 months 1 day
Weighted Average Exercise Price	5.40
Weighted Average Exercisable	115,000
Exercisable Weighted Average Exercise Price	5.40
Dollar 8.25
Class of Warrant or Right [Line Items]
Exercise Price	$ 8.25
Number Outstanding	313,768
Warrants Outstanding Remaining Contractual Life (Years)	8 months 1 day
Weighted Average Exercise Price	8.25
Weighted Average Exercisable	313,768
Exercisable Weighted Average Exercise Price	8.25
Dollar 10.74
Class of Warrant or Right [Line Items]
Exercise Price	$ 10.74
Number Outstanding	1,667
Warrants Outstanding Remaining Contractual Life (Years)	1 year 1 month 6 days
Weighted Average Exercise Price	10.74
Weighted Average Exercisable	1,667
Exercisable Weighted Average Exercise Price	10.74
Dollar 12.84
Class of Warrant or Right [Line Items]
Exercise Price	$ 12.84
Number Outstanding	1,667
Warrants Outstanding Remaining Contractual Life (Years)	1 year 7 months 6 days
Weighted Average Exercise Price	12.84
Weighted Average Exercisable	1,667
Exercisable Weighted Average Exercise Price	12.84
Dollar 14.06
Class of Warrant or Right [Line Items]
Exercise Price	$ 14.06
Number Outstanding	387,622
Warrants Outstanding Remaining Contractual Life (Years)	3 years 9 months 18 days
Weighted Average Exercise Price	14.06
Weighted Average Exercisable	387,622
Exercisable Weighted Average Exercise Price	14.06
Dollar 9.59
Class of Warrant or Right [Line Items]
Exercise Price	$ 9.59
Number Outstanding	945,166
Warrants Outstanding Remaining Contractual Life (Years)	2 years 4 months 6 days
Weighted Average Exercise Price	9.59
Weighted Average Exercisable	945,166
Exercisable Weighted Average Exercise Price	9.59