Net (Loss) Income Per Common Share - Reconciliation Between Denominator of Basic and Diluted Net (Loss) Income Per Common Share (Details) - shares	3 Months Ended		9 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2021	Nov. 30, 2020
Net Income Per Common Share [Abstract]
Weighted-average common shares outstanding (basic)	24,289,909	24,197,786	24,279,084	24,196,393
Restricted stock units, stock grants, and market stock units	0	479,739	0	335,936
Weighted-average common shares and potential common shares outstanding (diluted)	24,289,909	24,677,525	24,279,084	24,532,329