Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 55,482	$ 80,752
Prepaid expenses and other current assets	3,998	2,971
Income tax receivable	1,717	1,707
Total current assets	61,197	85,430
Long-term investment	8,055	5,871
Other non-current assets	46	46
Operating lease right-of-use assets	1,105	1,532
Property and equipment, net	633	801
Total assets	71,036	93,680
Current liabilities:
Accounts payable	2,970	4,412
Accrued expenses	8,949	11,319
Current portion of operating lease liabilities	465	889
Current portion of long-term debt	0	15,423
Total current liabilities	12,384	32,043
Operating lease liabilities, net of current portion	71	79
Total liabilities	12,455	32,122
Commitments and contingencies (Note 11)
Shareholders’ equity:
Common shares, par value $0.00001 per share, 1,000,000,000 shares authorized, 40,973,380 and 39,526,299 issued and outstanding at June 30, 2020 and March 31, 2020, respectively	0	0
Additional paid-in capital	825,830	820,257
Accumulated deficit	(767,238)	(758,644)
Accumulated other comprehensive loss	(11)	(55)
Total shareholders’ equity	58,581	61,558
Total liabilities and shareholders’ equity	$ 71,036	$ 93,680