Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Mar. 31, 2019
Statement of Financial Position [Abstract]
Preferred stock, par value per share (in dollars per share)	$ 0.002	$ 0.002
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value per share (in dollars per share)	$ 0.002	$ 0.002
Common stock, shares authorized	450,000,000	450,000,000
Common stock, shares, issued	43,235,701	42,846,273
Common stock, shares outstanding	43,235,701	42,846,273