XML 52 R42.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Stockholders' Equity (Details 1)
12 Months Ended
Dec. 31, 2019
Equity [Abstract]  
Expected volatility 67.80%
Risk-free interest rate 2.50%
Expected life 6 years 2 months 30 days
Dividend yield 0.00%