CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS EQUITY (unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (loss)	Accumulated Deficit
Balance, shares at May. 31, 2021		23,725
Balance, amount at May. 31, 2021	$ 11,449	$ 237	$ 87,553	$ (28)	$ (76,313)
Issuance of common stock under employee plans, shares		758
Issuance of common stock under employee plans, amount	1,535	$ 8	1,527	0	0
Stock-based compensation	588	0	588	0	0
Net income	696	0	0	0	696
Foreign currency translation adjustment	(36)	$ 0	0	(36)	0
Balance, shares at Aug. 31, 2021		24,483
Balance, amount at Aug. 31, 2021	14,232	$ 245	89,668	(64)	(75,617)
Balance, shares at May. 31, 2022		27,120
Balance, amount at May. 31, 2022	50,989	$ 271	117,686	(105)	(66,863)
Issuance of common stock under employee plans, shares		422
Issuance of common stock under employee plans, amount	455	$ 4	451	0	0
Stock-based compensation	709	0	709	0	0
Net income	589	0	0	0	589
Foreign currency translation adjustment	(45)	$ 0	0	(45)	0
Shares repurchased for tax withholdings on vesting of restricted stock units, shares		147
Shares repurchased for tax withholdings on vesting of restricted stock units, amount	(1,179)	$ (1)	(1,178)	0	0
Balance, shares at Aug. 31, 2022		27,395
Balance, amount at Aug. 31, 2022	$ 51,518	$ 274	$ 117,668	$ (150)	$ (66,274)