Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

SHARE BASED COMPENSATION - Assumptions Used in the Valuation Model (Details)

v3.7.0.1
SHARE BASED COMPENSATION - Assumptions Used in the Valuation Model (Details) - Options
12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Assumptions used in the valuation model      
Expected dividend yield (as a percent) 0.00% 0.00% 0.00%
Expected volatility (as a percent) 63.00% 50.00% 71.00%
Expected term 6 years 29 days 3 months 6 years 3 months
Risk-free interest rate (as a percent) 1.98% 0.72% 1.70%