Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 31, 2020	Apr. 30, 2020
Current assets:
Cash and cash equivalents	$ 18,014	$ 15,789
Marketable securities	46,317	51,925
Research and development tax credit receivable	12,638	16,527
Prepaid expenses and other current assets	3,256	4,455
Total current assets	80,225	88,696
Property and equipment, net	2,019	2,043
Right of use assets	1,480	1,612
Other assets	178	178
Total assets	83,902	92,529
Current liabilities:
Accounts payable	1,774	1,677
Accrued expenses	6,170	5,455
Lease liability - current portion	513	588
Total current liabilities	8,457	7,720
Long-term liabilities:
Lease liability - net of current portion	1,010	1,057
Total long-term liabilities	1,010	1,057
Commitments and contingencies (Note 5)
Stockholders’ equity
Common stock, $0.001 par value, 100,000,000 authorized Shares issued and outstanding: 17,880,414 at July 31, 2020 and 17,845,599 at April 30, 2020	18	18
Additional paid-in capital	208,442	207,208
Accumulated deficit	(132,406)	(121,592)
Accumulated other comprehensive loss	(1,619)	(1,882)
Total stockholders’ equity	74,435	83,752
Total liabilities and stockholders’ equity	$ 83,902	$ 92,529