CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Oct. 31, 2023	Apr. 30, 2023
Current assets:
Cash and cash equivalents	$ 31,424	$ 38,542
Accounts receivable, net	13,379	18,298
Contract assets	10,847	9,609
Inventory	38,583	43,908
Prepaid expenses and other current assets	9,972	2,094
Total current assets	104,205	112,451
Property and equipment, net	187,874	177,770
Operating lease right-of-use assets	41,973	42,772
Deferred tax assets	116,760	113,751
Other assets	4,673	4,473
Restricted cash	0	350
Total assets	455,485	451,567
Current liabilities:
Accounts payable	22,784	24,593
Accrued compensation and benefits	4,244	8,780
Contract liabilities	46,437	37,352
Convertible senior notes, net	141,154	140,623
Current portion of operating lease liabilities	1,263	1,358
Other current liabilities	3,394	2,440
Total current liabilities	219,276	215,146
Operating lease liabilities, less current portion	45,036	45,690
Finance lease liabilities, less current portion	7,840	1,562
Total liabilities	272,152	262,398
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value; 5,000 shares authorized; no shares issued and outstanding at respective dates	0	0
Common stock, $0.001 par value; 150,000 shares authorized; 63,234 and 62,692 shares issued and outstanding at respective dates	63	63
Additional paid-in capital	626,031	620,224
Accumulated deficit	(442,761)	(431,118)
Total stockholders’ equity	183,333	189,169
Total liabilities and stockholders’ equity	$ 455,485	$ 451,567