CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jan. 31, 2021	Apr. 30, 2020
Current assets:
Cash	$ 7,429	$ 8,342
Accounts receivable, net	6,121	4,770
Prepaid expenses and other current assets	419	385
Total current assets	13,969	13,497
Operating lease right-of-use assets, net	5,380	2,798
Property and equipment, net	5,540	3,993
Other long-term assets	36	128
Goodwill	335	335
Total assets	25,260	20,751
Current liabilities:
Accounts payable	1,745	3,140
Accrued liabilities	2,426	2,502
Current portion of finance lease	0	125
Current portion of operating lease liabilities	628	503
Deferred revenue	6,615	5,815
Total current liabilities	11,414	12,085
Non-current operating lease liabilities	5,798	3,170
Other non-current liabilities	181	178
Total liabilities	17,393	15,433
Stockholders’ equity:
Common stock, $.001 par value; 200,000,000 shares authorized; 13,390,172 and 12,726,728 shares issued and outstanding as of January 31, 2021 and April 30, 2020, respectively	13	13
Additional paid-in capital	79,711	77,978
Accumulated deficit	(71,857)	(72,673)
Total stockholders’ equity	7,867	5,318
Total liabilities and stockholders’ equity	$ 25,260	$ 20,751