Stockholders' equity (Tables)

12 Months Ended

Sep. 30, 2013

Stockholders Equity Tables

Schedule of Stock option activity

	For the three months ended			For the twelve months ended
	December 31,			September 30,
	2013			2013			2012
Beginning balance outstanding		1,651,678			1,649,110			1,486,333
Options issued during the year		-			333,334			393,333
Options expired or cancelled during the year		(85,011	)		(330,766	)		(230,556	)
Ending balance outstanding		1,566,667			1,651,678			1,649,110

Schedule of Warrant activity

	For the three months ended			For the twelve months ended
	December 31,			September 30,
	2013			2013			2012
Beginning balance outstanding		7,907,435			7,396,481			3,599,761
Warrants issued during the year
For consulting and advisory services		138,333			486,667			2,196,333
In connection with sales of common and preferred stock		200,000			726,383			1,780,971
Warrants expired or cancelled during the year		(267,778	)		(39,667	)		(133,513	)
Warrants exercised		-			(662,429	)		(47,071	)
Ending balance outstanding		7,977,990			7,907,435			7,396,481

Schedule of Warrants outstanding

Shares Outstanding		Weighted Average Exercise Price		Expiration Fiscal Period
	35,380		8.70	1st Qtr, 2014
	57,333		9.75	2nd Qtr, 2014
	35,000		7.65	3rd Qtr, 2014
	81,973		7.80	4th Qtr, 2014
	78,100		7.80	1st Qtr, 2015
	10,600		10.05	2nd Qtr, 2015
	83,918		6.60	43rd Qtr, 2015
	479,246		7.65	4th Qtr, 2015
	872,800		7.20	1st Qtr, 2016
	960,100		6.45	2nd Qtr, 2016
	1,263,958		6.90	3rd Qtr, 2016
	516,808		7.80	2nd Qtr, 2016
	859,750		6.15	1st Qtr, 2017
	1,076,475		7.65	2nd Qtr, 2017
	1,599,208		6.75	3rd Qtr, 2017
	1,195,675		6.75	4th Qtr, 2017
	66,667		5.85	1st Qtr, 2018
	138,333		1.95	4th Qtr, 2018
	133,333		7.05	4th Qtr, 2022
	9,544,657

Schedule of Assumptions

	For the three months ended			For the twelve months ended
	December 31,			September 30,
	2013			2013			2012
Expected life (in years)	4.99 years			4.33 years			4.04 years
Weighted average volatility		90.07	%		93.89	%		89.17	%
Forfeiture rate		0	%		0	%		0	%
Risk-free interest rate		1.41	%		0.74	%		0.54	%
Expected dividend rate		0	%		0	%		0	%

Schedule of share based compensation activity

				Weighted Average Exercise Price			Weighted Average Remaining Contractual	Aggregate Instrinsic
	Shares			Price			Term	Value
Outstanding at September 30, 2013		5,544,671		$	6.84
Granted		138,333			1.95
Cancelled or expired		(235,012	)		(7.60	)
Exercised		-			-
Outstanding at September 30, 2103		5,447,992		$	6.75		37.9 months	$	-
Exercisable		4,225,664		$	6.75		37.0 months	$	-
				Weighted Average Exercise Price			Weighted Average Remaining Contractual	Aggregate Instrinsic
	Shares			Price			Term	Value
Outstanding at September 30, 2012		5,095,103		$	6.85
Granted		820,001			6.86
Cancelled or expired		(370,433	)		(6.91	)
Exercised		-			-
Outstanding at September 30, 2103		5,544,671		$	6.84		40.6 months	$	-
Exercisable		4,362,580		$	6.90		39.4 months	$	-

Schedule of option and warrant per share values

	For the 3 Months Ended		For the Years Ended
	December 31,		September 30,		September 30,
	2013		2013		2012
Weighted average grant date fair value of options and warrants granted	$	1.95	$	6.86	$	6.52
Aggregate intrinsic value of options and warrants exercised		-		-		3.75
Weighted average fair value of options and warrants vested		4.50		6.90		6.67

Schedule of Options Outstanding and Exercisable by Exercise Price Range

		Number of Options and Warrants
Exercise Price Range		December 31, 2013	September 30, 2013
$	1.95 - $6.15	998,334	1,003,334
$	6.16 - $6.30	230,000	230,000
$	6.31 - $6.45	1,440,000	1,440,000
$	6.46 - $7.05	1,253,333	1,267,604
$	7.20 - $15.00	1,526,325	1,603,733
		5,447,992	5,544,671

Schedule of Nonvested options and warrants

	For the three months ended			For the twelve months ended
	December 31,			September 30,
	2013			2013			2012
Non-vested outstanding, beginning		1,182,090			2,707,530			1,763,850
Granted		138,333			820,000			2,589,667
Vested		(298,095	)		(2,271,736	)		(1,405,431	)
Cancelled		(133,333	)		(73,704	)		(240,556	)
Non-vested outstanding, ending		888,995			1,182,090			2,707,530

Schedule of Shares Reserved for Future Issuance

	For the three months ended		For the twelve months ended
	December 31,		September 30,
	2013		2013		2012
Stock options outstanding		1,566,667		1,651,678		1,649,110
Stock options available for future grant		7,100,000		481,655		284,223
Warrants		7,977,990		7,907,435		7,396,481
Total common shares reserved for future issuance		16,644,657		10,040,768		9,329,814