XML 27 R20.htm IDEA: XBRL DOCUMENT v3.20.1
Share-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of share-based compensation
   three months ended
March 31
   2020  2019
Expected life (years)  N/A  N/A
Dividend yield  N/A  N/A
Expected volatility  N/A  N/A
Risk free interest rates  N/A  N/A
Weighted average fair value of options at grant date  N/A  N/A