CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2022	Aug. 31, 2021
Cash flows from operating activities:
Net income	$ 589	$ 696
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	710	588
Depreciation and amortization	89	73
Gain from forgiveness of PPP loan	0	(1,698)
Changes in operating assets and liabilities:
Accounts receivable	7,648	895
Inventories	(2,323)	(1,324)
Prepaid expenses and other current assets	(210)	(201)
Accounts payable	(769)	(130)
Accrued expenses	(1,130)	(169)
Customer deposits and deferred revenue	855	3,141
Income taxes payable	2	3
Net cash provided by operating activities	5,461	1,874
Cash flows from investing activities:
Purchases of property and equipment	(84)	(59)
Net cash used in investing activities	(84)	(59)
Cash flows from financing activities:
Line of credit repayments, net	0	(1,400)
Proceeds from issuance of common stock under employee plans	455	1,535
Shares repurchased for tax withholdings on vesting of restricted stock units	(1,179)	0
Net cash (used in) provided by financing activities	(724)	135
Effect of exchange rates on cash, cash equivalents and restricted cash	10	(2)
Net increase in cash, cash equivalents and restricted cash	4,663	1,948
Cash, cash equivalents and restricted cash, beginning of period(1)	31,564	4,662
Cash, cash equivalents and restricted cash, end of period(1)	$ 36,227	$ 6,610