Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Mar. 31, 2020	$ 92,925	$ 1,781	$ 92,456	$ (1,312)
Balance, shares at Mar. 31, 2020		29,817
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(5,110)		(5,110)
Foreign currency translation adjustment, including income tax expense (benefit)	353			353
Stock-based compensation expense	865	$ 865	0
Common stock issued under equity compensation plan, net of shares withheld for tax payments (in shares)		87
Common stock issued under equity compensation plan, net of shares withheld for tax payments	0	$ 0
Common stock issued under employee stock purchase plan, shares		63
Common stock issued under employee stock purchase plan	83	$ 83
Balance, shares at Jun. 30, 2020		29,967
Ending balance at Jun. 30, 2020	89,116	$ 2,729	87,346	(959)
Beginning balance at Mar. 31, 2020	92,925	$ 1,781	92,456	(1,312)
Balance, shares at Mar. 31, 2020		29,817
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	57,664
Unrealized loss on marketable securities, net of income tax benefit	(4)
Foreign currency translation adjustment, including income tax expense (benefit)	1,330
Balance, shares at Dec. 31, 2020		30,330
Ending balance at Dec. 31, 2020	153,195	$ 3,061	150,120	14
Beginning balance at Jun. 30, 2020	89,116	$ 2,729	87,346	(959)
Balance, shares at Jun. 30, 2020		29,967
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	33,838		33,838
Foreign currency translation adjustment, including income tax expense (benefit)	217			217
Stock-based compensation expense	1,071	$ 1,071	0
Common stock issued under equity compensation plan, shares		290
Common stock issued under equity compensation plan, net of shares withheld for tax payments		$ (796)
Balance, shares at Sep. 30, 2020		30,257
Ending balance at Sep. 30, 2020	123,446	$ 3,004	121,184	(742)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	28,936		28,936
Unrealized loss on marketable securities, net of income tax benefit	(4)			(4)
Foreign currency translation adjustment, including income tax expense (benefit)	760			760
Stock-based compensation expense	1,234	$ 1,234	0
Common stock issued under equity compensation plan, net of shares withheld for tax payments (in shares)		42
Common stock issued under equity compensation plan, net of shares withheld for tax payments	(1,350)	$ (1,350)
Common stock issued under employee stock purchase plan, shares		31
Common stock issued under employee stock purchase plan	173	$ 173
Balance, shares at Dec. 31, 2020		30,330
Ending balance at Dec. 31, 2020	153,195	$ 3,061	150,120	14
Beginning balance at Mar. 31, 2021	182,545	$ 2,176	180,524	(155)
Balance, shares at Mar. 31, 2021		30,576
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	13,884		13,884
Unrealized loss on marketable securities, net of income tax benefit	0			0
Foreign currency translation adjustment, including income tax expense (benefit)	217			217
Stock-based compensation expense	1,225	$ 1,225	0
Common stock issued under equity compensation plan, net of shares withheld for tax payments (in shares)		201
Common stock issued under equity compensation plan, net of shares withheld for tax payments	(1,259)	$ (1,259)
Common stock issued under employee stock purchase plan, shares		17
Common stock issued under employee stock purchase plan	269	$ 269
Balance, shares at Jun. 30, 2021		30,794
Ending balance at Jun. 30, 2021	196,881	$ 2,411	194,408	62
Beginning balance at Mar. 31, 2021	182,545	$ 2,176	180,524	(155)
Balance, shares at Mar. 31, 2021		30,576
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(4,217)
Unrealized loss on marketable securities, net of income tax benefit	(4)
Foreign currency translation adjustment, including income tax expense (benefit)	(342)
Balance, shares at Dec. 31, 2021		31,245
Ending balance at Dec. 31, 2021	180,685	$ 4,879	176,307	(501)
Beginning balance at Jun. 30, 2021	196,881	$ 2,411	194,408	62
Balance, shares at Jun. 30, 2021		30,794
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(4,602)		(4,602)
Unrealized loss on marketable securities, net of income tax benefit	(4)			(4)
Foreign currency translation adjustment, including income tax expense (benefit)	(411)			(411)
Stock-based compensation expense	1,540	$ 1,540	0
Common stock issued under employee stock purchase plan, shares		0
Common stock issued under employee stock purchase plan	0	$ 0
Common stock issued under equity compensation plan, shares		365
Common stock issued under equity compensation plan, net of shares withheld for tax payments		$ (893)
Balance, shares at Sep. 30, 2021		31,159
Ending balance at Sep. 30, 2021	192,511	$ 3,058	189,806	(353)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(13,499)		(13,499)
Unrealized loss on marketable securities, net of income tax benefit	0
Foreign currency translation adjustment, including income tax expense (benefit)	(148)			(148)
Stock-based compensation expense	1,846	$ 1,846	0
Common stock issued under employee stock purchase plan, shares		29
Common stock issued under employee stock purchase plan	217	$ 217
Common stock issued under equity compensation plan, shares		57
Common stock issued under equity compensation plan, net of shares withheld for tax payments		$ (242)
Balance, shares at Dec. 31, 2021		31,245
Ending balance at Dec. 31, 2021	$ 180,685	$ 4,879	$ 176,307	$ (501)