Quarterly report pursuant to Section 13 or 15(d)

4. Stock-Based Compensation (Details)

v3.19.1
4. Stock-Based Compensation (Details)
3 Months Ended
Mar. 31, 2018
Share-based Compensation [Abstract]  
Risk free interest rate, minimum 2.65%
Risk free interest rate, maximum 2.66%
Dividend yield 0.00%
Expected term 5 years
Expected volatility 49.00%