|
Common Stock (Details Textual) (USD $)
|
0 Months Ended | 1 Months Ended | 9 Months Ended | 75 Months Ended | 9 Months Ended | 1 Months Ended | 9 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jun. 27, 2012
|
Jun. 27, 2012
|
Sep. 30, 2012
Plans
|
Sep. 30, 2011
|
Sep. 30, 2012
Plans
|
Aug. 28, 2012
|
Dec. 31, 2011
|
May 31, 2011
|
Aug. 16, 2012
Warrant Expires on Fifth Anniversary [Member]
|
Aug. 16, 2012
Warrant Expires on Sixth Anniversary [Member]
|
Sep. 30, 2012
National Securities Corporation [Member]
|
Sep. 30, 2011
National Securities Corporation [Member]
|
May 31, 2011
National Securities Corporation [Member]
|
Aug. 28, 2012
Warrants [Member]
Warrant Expires on Fifth Anniversary [Member]
|
Aug. 28, 2012
Warrants [Member]
Warrant Expires on Sixth Anniversary [Member]
|
Sep. 30, 2011
Warrants [Member]
National Securities Corporation [Member]
|
|
| Common Stock (Textual) [Abstract] | ||||||||||||||||
| Shares issued for public offering under underwriting | 5,750,000 | 5,750,000 | 24,375,749,000 | 24,375,749,000 | 18,604,245,000 | |||||||||||
| Over-allotment option | 750,000 | 750,000 | ||||||||||||||
| Proceed from option exercised by underwriters | $ 5.00 | $ 5.00 | ||||||||||||||
| Proceeds from the issuance of Common Stock | $ 26,400,000 | $ 264,000,000 | $ 28,750,000 | $ 80,000 | $ 28,948,000 | |||||||||||
| Number of equity compensation plans | 2 | 2 | ||||||||||||||
| Unrecognized stock-based compensation expense related to unvested stock options and warrants granted to employees and non-employees | 5,200,000 | 5,200,000 | ||||||||||||||
| Unrecognized stock-based compensation expense, weighted average vesting period | 1 year 7 months 6 days | |||||||||||||||
| Declared a dividend for Series A Convertible Preferred Stock | 2,178,917 | |||||||||||||||
| Fair value of the Common Stock | 5,900,000 | |||||||||||||||
| Fair value of the Common Stock per share | $ 2.69 | |||||||||||||||
| Warrant to purchase common stock | 73,009 | 25,000 | 20,000 | 461,263 | ||||||||||||
| Fair value of the warrant | 112,000 | 92,000 | ||||||||||||||
| Purchase price | 5.65 | 5.72 | 5.72 | 5.59 | ||||||||||||
| Initial fair value of the warrants contractual term | 5 years | 6 years | 5 years | |||||||||||||
| Initial fair value of the warrant volatility | 110.33% | 104.51% | 90.90% | |||||||||||||
| Initial fair value of the warrants risk free interest rate | 0.83% | 1.06% | 1.76% | |||||||||||||
| Initial fair value of the warrants dividend rate | 0.00% | 0.00% | ||||||||||||||
| Fee paid to National Securities Corporation as consideration for its services as the placement agent | 10.00% | |||||||||||||||
| Gross proceeds of the issuance in connection with the Company's Series C Share offering | 2,600,000 | |||||||||||||||
| Period of fully vested and exercisable warrants | 5 years | |||||||||||||||
| Fair value of warrants | 1,300,000 | 1,170,000 | ||||||||||||||
| Decrease in warrant liability | $ 115,000 | |||||||||||||||
| Estimated fair value of Series C Shares per share | $ 5.59 | |||||||||||||||