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Shareholder's Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2019	Aug. 31, 2018	Jan. 20, 2014
Stock Based Compensation [Line Items]
Total unrecognized compensation costs related to stock options and shares of restricted stock granted	$ 4	$ 16	$ 4	$ 16
Stock options granted			0	0
Authorized stock repurchase	2,632,500		2,632,500
Additional authorized stock repurchase					1,500,000
Repurchase of treasury stock (in shares)			0	8,858
Remaining repurchase of shares authorized	490,186		490,186
Average cost of repurchase shares				$ 1.12
Stock options convertible into shares excluded from diluted earnings per (loss) share calculation	200,000	200,000	200,000
Unrecognized compensation cost is expected to be recognized over a period			1 year
General and Administrative
Stock Based Compensation [Line Items]
Share-based compensation			$ 3	$ 9