Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Stock-Based Compensation (Details 2)

v3.19.1
Stockholders' Equity and Stock-Based Compensation (Details 2) - $ / shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Stockholders Equity And Stockbased Compensation Details 2Abstract    
Expected volatility 90.00%  
Risk free interest rate 2.84%  
Dividend yield rate 0.00% 0.00%
Weighted average remaining expected life 9 years 9 months 18 days  
Closing price per share - common stock $ 0.88