CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares shares in Thousands	Apr. 30, 2021	Apr. 30, 2020
Statement of Financial Position [Abstract]
Preferred stock par value (in Dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000	5,000
Preferred stock, shares issued	0	1,648
Preferred stock, shares outstanding	0	1,648
Common stock par value (in Dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	150,000	150,000
Common stock, shares issued	61,069	56,483
Common stock, shares outstanding	61,069	56,483