Warrants (Details Textual) (USD $)	0 Months Ended	1 Months Ended		9 Months Ended
	Mar. 04, 2013	May 22, 2013	Mar. 31, 2011	Sep. 30, 2013	Sep. 30, 2012
Warrants [Line Items]
Class of warrant or right exercise price of warrants or rights			0.40
Warrants exercised			14,879,708	2,248,222
Stock issued during period, shares, new issues			687,793
Proceeds from issuance of common stock	$ 3,000,000	$ 3,000,000	$ 206,000	$ 2,771,000	$ 0
Incremental fair value of inducement				14,000
Warrant [Member]
Warrants [Line Items]
Stock issued during period, shares, new issues				103,916
Rights Offering [Member]
Warrants [Line Items]
Proceeds from issuance of common stock				$ 42,000
Amended [Member]
Warrants [Line Items]
Class of warrant or right exercise price of warrants or rights			0.30