Quarterly report pursuant to Section 13 or 15(d)

Share based compensation (Details 2)

v3.19.3.a.u2
Share based compensation (Details 2)
 3 Months Ended
Nov. 30, 2018
$ / shares
shares
Exercise Prices Five [Member] | Maximum [Member]  
Exercise Prices $ 391.60
Exercise Prices Five [Member] | Minimum [Member]  
Exercise Prices 160.01
Exercise Prices Four [Member] | Maximum [Member]  
Exercise Prices 160.00
Exercise Prices Four [Member] | Minimum [Member]  
Exercise Prices 120.01
Exercise Prices Three [Member] | Maximum [Member]  
Exercise Prices 120.00
Exercise Prices Three [Member] | Minimum [Member]  
Exercise Prices 80.01
Exercise Prices One [Member] | Maximum [Member]  
Exercise Prices 40.00
Exercise Prices One [Member] | Minimum [Member]  
Exercise Prices 18.80
Exercise Prices Two [Member] | Maximum [Member]  
Exercise Prices 80.00
Exercise Prices Two [Member] | Minimum [Member]  
Exercise Prices $ 40.01
Options Vested Five [Member]  
Number of options | shares 791
Weighted Average Remaining Contractual Life In Years 7 years 7 months 17 days
Weighted Average Exercise Price $ 391.60
Options Vested Four [Member]  
Number of options | shares 6,890
Weighted Average Remaining Contractual Life In Years 7 years 6 months 21 days
Weighted Average Exercise Price $ 157.41
Options Vested Three [Member]  
Number of options | shares 4,384
Weighted Average Remaining Contractual Life In Years 8 years 4 months 28 days
Weighted Average Exercise Price $ 103.53
Options Vested Two [Member]  
Number of options | shares
Weighted Average Remaining Contractual Life In Years
Weighted Average Exercise Price
Options Vested One [Member]  
Number of options | shares
Weighted Average Remaining Contractual Life In Years
Weighted Average Exercise Price
Options Vested [Member]  
Number of options | shares 12,035
Weighted Average Remaining Contractual Life In Years 7 years 10 months 14 days
Weighted Average Exercise Price $ 153.19
Options Outstanding and Exercisable Five [Member]  
Number of options | shares 1,260
Weighted Average Remaining Contractual Life In Years 7 years 7 months 17 days
Weighted Average Exercise Price $ 391.60
Options Outstanding and Exercisable Two [Member]  
Number of options | shares 13,729
Weighted Average Remaining Contractual Life In Years 9 years 4 months 2 days
Weighted Average Exercise Price $ 51.21
Options Outstanding and Exercisable [Member]  
Number of options | shares 45,463
Weighted Average Remaining Contractual Life In Years 8 years 8 months 2 days
Weighted Average Exercise Price $ 98.30
Options Outstanding and Exercisable Four [Member]  
Number of options | shares 12,625
Weighted Average Remaining Contractual Life In Years 7 years 9 months 14 days
Weighted Average Exercise Price $ 157.71
Options Outstanding and Exercisable Three [Member]  
Number of options | shares 11,224
Weighted Average Remaining Contractual Life In Years 8 years 5 months 12 days
Weighted Average Exercise Price $ 103.15
Options Outstanding and Exercisable One [Member]  
Number of options | shares 6,625
Weighted Average Remaining Contractual Life In Years 9 years 6 months 7 days
Weighted Average Exercise Price $ 23.31