XML 57 R45.htm IDEA: XBRL DOCUMENT v3.8.0.1
Fair Value Measurements - Narrative (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2018
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Impact of 10% change in expected volatility rate $ 50
Impact of 10% change in the estimate of fair value of the common stock $ 94
Warrant Liability | Common Stock  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Expected term (in years) 3 years
Risk-free interest rate (as a percent) 2.38%
Expected volatility (as a percent) 78.10%
Expected dividend yield (as a percent) 0.00%