Earnings Per Share - Computation for Basic and Diluted Earnings Per Share (Detail) - $ / shares	3 Months Ended		6 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2023	Aug. 31, 2022
Earnings Per Share [Abstract]
Basic weighted average common shares outstanding	25,886,058	25,797,097	25,858,154	25,805,419
Effect of dilutive stock options, restricted stock and RSUs	164,925	61,714	152,585	62,085
Diluted weighted average common shares outstanding	26,050,983	25,858,811	26,010,739	25,867,504
Earnings per share
Net earnings - basic	$ 0.42	$ 0.47	$ 0.87	$ 0.92
Net earnings - diluted	0.42	0.47	0.87	0.92
Cash dividends per share	$ 0.25	$ 0.25	$ 0.5	$ 0.5