Consolidated Balance Sheets (Parenthetical) - $ / shares	May 31, 2020	Feb. 29, 2020
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Treasury stock, shares	2,749,218	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	24,406,194	24,306,194
Common stock, shares outstanding	21,656,976	21,556,976
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