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Derivative Liabilities - Fair value assumptions, derivative warrant liability (Details)
1 Months Ended
Jul. 31, 2016
$ / shares
Notes to Financial Statements  
Current exercise price $ 15.00
Time to expiration 2 years 1 month 6 days
Risk-free interest rate 0.76%
Estimated volatility 101.00%
Dividend 0.00%
Stock price at period end date $ 8.00