Consolidated Balance Sheets (Parenthetical) - $ / shares	Nov. 30, 2021	Feb. 28, 2021
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Treasury stock, shares	2,862,218	2,749,218
Common Class A [Member]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	60,000,000	60,000,000
Common stock, shares issued	24,476,847	24,416,194
Common stock, shares outstanding	21,614,629	21,666,976
Treasury stock, shares	2,862,218	2,749,218
Common Class B [Member]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	10,000,000	10,000,000
Common stock, shares issued	2,260,954	2,260,954
Common stock, shares outstanding	2,260,954	2,260,954