Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Aug. 31, 2022	Feb. 28, 2022
Accounts receivable, allowance for doubtful accounts	$ 5,801	$ 4,716
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	24,862,000	24,688,000
Common stock, shares outstanding (in shares)	24,862,000	24,688,000
Series A Preferred Stock
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares issued (in shares)	240,000	0
Preferred stock, shares outstanding (in shares)	240,000	0
Preferred stock, shares authorized (in shares)	240,000	240,000