CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Feb. 28, 2022	May 31, 2021
ASSETS
Inventories	$ 14,152	$ 8,849
Prepaid expenses and other current assets	559	551
Total current assets	55,274	19,184
Property and equipment, net	776	677
Current assets:
Operating lease right-of-use assets	1,091	1,606
Other assets	214	198
Total assets	57,355	21,665
Cash and cash equivalents	32,020	4,582
Current liabilities:
Accounts payable	3,307	2,893
Accrued expenses	2,535	2,163
Operating lease liabilities, short-term	778	737
Customer deposits and deferred revenue, short-term	6,197	189
Line of credit	0	1,400
Current portion of long-term debt	0	1,679
Total current liabilities	12,817	9,061
Operating lease liabilities, long-term	415	1,007
Deferred revenue, long-term	90	99
Other long-term liabilities	45	49
Total liabilities	13,367	10,216
Shareholders' equity:
Common stock, $0.01 par value: Authorized: 75,000 shares; Issued and outstanding: 26,914 shares and 23,725 shares at February 28, 2022 and May 31, 2021, respectively	269	237
Additional paid-in capital	116,507	87,553
Accounts receivable, net	8,543	5,202
Accumulated other comprehensive loss	(131)	(28)
Accumulated deficit	(72,657)	(76,313)
Total shareholders' equity	43,988	11,449
Total liabilities and shareholders' equity	$ 57,355	$ 21,665