Quarterly report pursuant to Section 13 or 15(d)

Organization and Summary of Significant Accounting Policies (Details Textual)

v2.4.0.8
Organization and Summary of Significant Accounting Policies (Details Textual) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Dec. 31, 2012
Schedule of Organization and Summary of Significant Accounting Policies [Line Items]            
Non-cash (gain) loss on changes in fair value of warrants $ (1,461,000) $ 1,010,000 $ (313,000) $ (1,306,000)    
Cash and Cash Equivalents, at Carrying Value 7,450,000 8,998,000 7,450,000 8,998,000 11,798,000 18,102,000
Proceeds from (Payments for) Other Financing Activities     $ 9,600,000