Shareholder's Equity - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Jan. 20, 2014
Stock Based Compensation [Line Items]
Total unrecognized compensation costs related to stock options and shares of restricted stock granted	$ 35	$ 2
Unrecognized compensation cost is expected to be recognized over a period	3 years
Stock options granted	140,000	0
Authorized stock repurchase	2,632,500
Additional authorized stock repurchase			1,500,000
Repurchase of treasury stock (in shares)	0	0
Remaining repurchase of shares authorized	502,644
Replacement Stock Options
Stock Based Compensation [Line Items]
Stock options granted	60,000
General and Administrative
Stock Based Compensation [Line Items]
Share-based compensation	$ 58	$ 3