RECEIVABLES: (Details Textual) (USD $)	Apr. 30, 2013	Apr. 30, 2012
Media Service Operations Due, Percentage Of Accounts Receivable	68.00%	53.00%
Real Estate Stated Interest Rates For Mortgage Notes Receivable	8.50%
Real Estate Receivables, Future Minimum Payments Current	$ 35,000
Real Estate Receivables, Future Minimum Payments Thereafter	0
Allowance for Doubtful Accounts Receivable, Current	2,000,000
Commissions and Other Revenues Percentage	2.00%
Media Services, Newsstand Distribution Services, Net Of Estimated Returns [Member]
Estimated Magazine Sales Returns	$ 75,897,000	$ 69,973,000