Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details Textual)

v3.8.0.1
Income Taxes (Details Textual)
3 Months Ended 9 Months Ended
Nov. 30, 2017
Nov. 30, 2016
Nov. 30, 2017
Nov. 30, 2016
Income Tax Disclosure [Abstract]        
Effective tax rate 23.20% 16.30% 20.10% 26.70%