CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]
Balances at Feb. 28, 2018	$ 198,916	$ 357	$ 218,217	$ (19,459)	$ (199)
Balances (in shares) at Feb. 28, 2018		35,718
Cumulative adjustment upon adoption, net of tax | ASU 2016-01 [Member]				434	(434)
Cumulative adjustment upon adoption, net of tax | ASC 606 [Member]	(1,595)			(1,595)
Net income (loss)	8,511			8,511
Stock-based compensation expense	2,467		2,467
Shares issued on net share settlement of equity awards	(233)		(233)
Shares issued on net share settlement of equity awards (in shares)		21
Exercise of stock options	68		68
Exercise of stock options (in shares)		38
Repurchases of common stock	(5,710)	$ (2)	(5,708)
Repurchases of common stock (in shares)		(270)
Other comprehensive income (loss), net of tax	17				17
Balances at May. 31, 2018	202,441	$ 355	214,811	(12,109)	(616)
Balances (in shares) at May. 31, 2018		35,507
Balances at Feb. 28, 2019	205,653	$ 336	208,205	(2,227)	(661)
Balances (in shares) at Feb. 28, 2019		33,555
Net income (loss)	(8,693)			(8,693)
Stock-based compensation expense	2,543		2,543
Shares issued on net share settlement of equity awards	(219)		(219)
Shares issued on net share settlement of equity awards (in shares)		13
Exercise of stock options	$ 97		97
Exercise of stock options (in shares)	39	39
Other comprehensive income (loss), net of tax	$ (269)				(269)
Balances at May. 31, 2019	$ 199,112	$ 336	$ 210,626	$ (10,920)	$ (930)
Balances (in shares) at May. 31, 2019		33,607