CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Feb. 28, 2023	May 31, 2022
Current assets:
Cash and cash equivalents	$ 17,188	$ 31,484
Short-term investments	25,577	0
Trade and other accounts receivable, net	11,389	12,859
Inventories	21,619	15,051
Prepaid expenses and other current assets	808	613
Total current assets	76,581	60,007
Property and equipment, net	1,281	1,203
Operating lease right-of-use assets	6,293	917
Other assets	241	201
Total assets	84,396	62,328
Current liabilities:
Accounts payable	4,988	4,195
Accrued expenses	3,489	3,610
Operating lease liabilities, short-term	68	794
Customer deposits and deferred revenue, short-term	843	2,415
Total current liabilities	9,388	11,014
Operating lease liabilities, long-term	6,324	212
Deferred revenue, long-term	8	69
Other long-term liabilities	42	44
Total liabilities	15,762	11,339
Shareholders' equity:
Common stock, $0.01 par value: Authorized: 75,000 shares; Issued and outstanding: 28,320 shares and 27,120 shares as of February 28, 2023 and May 31, 2022, respectively	283	271
Additional paid-in capital	126,930	117,686
Accumulated other comprehensive loss	(162)	(105)
Accumulated deficit	(58,417)	(66,863)
Total shareholders' equity	68,634	50,989
Total liabilities and shareholders' equity	$ 84,396	$ 62,328