Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating expenses:
Research and development expenses	$ 5,058	$ 6,833	$ 10,252	$ 27,923
General and administrative expenses	4,491	5,051	9,131	11,519
Total operating expenses	9,549	11,884	19,383	39,442
Other (income) expenses:
Interest expense	1	1,313	797	2,871
Other expense (income)	580	560	(1,486)	(537)
Loss before income tax (benefit) expense	(10,130)	(13,757)	(18,694)	(41,776)
Income tax (benefit) expense	(146)	127	(116)	165
Net loss	$ (9,984)	$ (13,884)	$ (18,578)	$ (41,941)
Net loss per common share — basic and diluted (in dollars per share)	$ (0.21)	$ (0.61)	$ (0.41)	$ (1.84)
Weighted-average common shares outstanding - basic and diluted (in shares)	46,731,666	22,783,182	45,018,855	22,781,657