Results of Operations (Details Textual)
Sep. 30, 2012
Options to purchase common stock outstanding [Member]
 
Results of Operations (Textual) [Abstract]  
Shares subject to stock options and warrant exercise 3,158,000
Warrants to purchase common stock outstanding [Member]
 
Results of Operations (Textual) [Abstract]  
Shares subject to stock options and warrant exercise 156,000