Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands		Total	Common Stock		Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Balance at Mar. 31, 2020		$ 400,494	$ 661			$ 282,857	$ 119,119	$ (2,143)
Balance, Shares at Mar. 31, 2020			66,134,000
Common stock issued under stock plans, net of shares withheld for taxes		(1,294)	$ 10			(1,304)
Common stock issued under stock plans, net of shares withheld for taxes, Shares			935,000
Stock-based compensation		22,710				22,710
Components of other comprehensive income:
Translation adjustments		219						219
Net income (loss)		9,515					9,515
Balance at Mar. 31, 2021		431,644	$ 671			304,263	128,634	(1,924)
Balance, Shares at Mar. 31, 2021			67,069,000
Common stock issued under stock plans, net of shares withheld for taxes		(877)	$ 21			(898)
Common stock issued under stock plans, net of shares withheld for taxes, Shares			2,176,000
Stock-based compensation		26,552				26,552
Repurchase of common stock	[1]	$ (35,874)			$ (35,874)
Repurchase of common stock, Shares		(2,169,896)	(2,170,000)	[1]
Components of other comprehensive income:
Translation adjustments		$ 15						15
Net income (loss)		1,618					1,618
Balance at Mar. 31, 2022		423,078	$ 692		(35,874)	329,917	130,252	(1,909)
Balance, Shares at Mar. 31, 2022			67,075,000
Common stock issued under stock plans, net of shares withheld for taxes		(4,016)	$ 17			(4,033)
Common stock issued under stock plans, net of shares withheld for taxes, Shares			1,630,000
Stock-based compensation		33,458				33,458
Repurchase of common stock	[2]	$ (49,878)			(49,878)
Repurchase of common stock, Shares		(2,679,336)	(2,679,000)	[2]
Components of other comprehensive income:
Unrealized gain on marketable securities		$ 42						42
Translation adjustments		405						405
Net income (loss)		(2,654)					(2,654)
Balance at Mar. 31, 2023		$ 400,435	$ 709		$ (85,752)	$ 359,342	$ 127,598	$ (1,462)
Balance, Shares at Mar. 31, 2023			66,026,000

[1] Weighted-average repurchase price (dollars per share) for the year ended March 31, 2022 was $16.53.

[2] Weighted-average repurchase price (dollars per share) for the year ended March 31, 2023 was $18.62.