CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jan. 31, 2022	Apr. 30, 2021
Current assets:
Cash	$ 8,701	$ 4,687
Accounts receivable, net	8,563	6,986
Prepaid expenses and other current assets	561	957
Total current assets	17,825	12,630
Operating lease right-of-use assets, net	8,418	8,521
Property and equipment, net	6,991	6,090
Other long-term assets	15	15
Goodwill	335	335
Total assets	33,584	27,591
Current liabilities:
Accounts payable	3,743	1,894
Accrued liabilities	2,026	2,231
Current portion of operating lease liabilities	1,014	818
Other current liability	15	0
Deferred revenue	8,701	6,256
Total current liabilities	15,499	11,199
Non-current operating lease liabilities	8,618	8,783
Other non-current liabilities	231	181
Total liabilities	24,348	20,163
Stockholders’ equity:
Common stock, $.001 par value; 200,000,000 shares authorized; 13,517,941 and 13,414,066 shares issued and outstanding as of January 31, 2022 and April 30, 2021, respectively	14	13
Additional paid-in capital	80,860	79,945
Accumulated deficit	(71,638)	(72,530)
Total stockholders’ equity	9,236	7,428
Total liabilities and stockholders’ equity	$ 33,584	$ 27,591