Organization and Summary of Significant Accounting Policies (Tables)
|3 Months Ended|
Mar. 31, 2017
|Organization and Summary of Significant Accounting Policies [Abstract]|
|Fair Value of Warrant Liability [Table Text Block]||
As a result of the fair value adjustment of the warrant liabilities, we recorded non-cash gains on decreases in the fair value of approximately $422,000 and approximately $4,000 for the three month periods ended March 31, 2017 and 2016 in our Condensed Statements of Operations and Comprehensive Loss. See Note 6, “Warrant Liability” for further discussion on the calculation of the fair value of the warrant liability.