Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Millions	May 31, 2018	May 31, 2017
Allowance for doubtful accounts	$ 12.4	$ 13.7
Allowance for royalty advances	$ 97.0	$ 93.8
Preferred stock par value (in Dollars per share)	$ 1	$ 1
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued	0	0
Common Stock [Member]
Common Stock, par value per share (in Dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized	70,000,000	70,000,000
Common Stock, shares issued	42,900,000	42,900,000
Common Stock, shares outstanding	33,320,335	33,400,000
Class A Stock [Member]
Common Stock, par value per share (in Dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized	4,000,000	4,000,000
Common Stock, shares issued	1,700,000	1,700,000
Common Stock, shares outstanding	1,656,200	1,700,000