Commitments and Contingencies (Details Textual) - USD ($) $ in Millions |
9 Months Ended | |
---|---|---|
Jan. 15, 2016 |
Sep. 30, 2017 |
|
Loss Contingencies [Line Items] | ||
Number Of Shares To Be Issued Upon Legal Settlement | 200,000 | |
Litigation Settlement, Expense | $ 0.1 | |
Litigation Settlement, Amount Awarded to Other Party | $ 2.1 | |
City Of Hope [Member] | ||
Loss Contingencies [Line Items] | ||
Failed Contingency Damages Awarded Percentage | 15.00% |