Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details 3)

v3.6.0.2
Stockholders' Equity (Details 3) - Warrant Exercise Price $6.00 [Member] - USD ($)
$ / shares in Units, $ in Thousands
Jul. 31, 2016
Apr. 30, 2016
Jan. 31, 2016
Class of Warrant or Right [Line Items]      
Warrant shares issued 12,500 12,500 12,500
Market price $ 9.31 $ 8.37 $ 4.63
Exercise price $ 6.00 $ 6.00 $ 6.00
Term (years) 2 years 2 years 3 months 1 year 3 months
Risk-free interest rate 0.72% 0.77% 0.97%
Volatility 80.00% 80.00% 80.00%
Dividend rate 0.00% 0.00% 0.00%
Per share FV of warrant $ 5.19 $ 4.58 $ 1.24
FV of warrant $ 65 $ 57 $ 16