Subsequent Events	6 Months Ended
Nov. 30, 2013
Subsequent Events [Abstract]
Subsequent Events [Text Block]	17. Subsequent Events On December 13, 2013, the Company delivered an acceptance of offer (“Acceptance Letter”) to purchase its headquarters space (both land and building) at 555 Broadway, New York, NY (the “Property”) from its landlord, ISE 555 Broadway, LLC (the “Landlord”). Under the terms of the Amended and Restated Lease effective as of August 1, 1999 between the Landlord and the Company (the “Lease”), the Landlord was obligated to offer to sell the Property to the Company prior to marketing the Property for sale to a third party. Pursuant to Section 2.03 of the Lease, the Landlord made the required written offer pursuant to a notice dated October 16, 2013 (“Landlord’s Offer Notice”). Under the terms of the Lease and the Landlord’s Offer Notice, by accepting the Landlord’s offer the Company is obligated to purchase the Property for $255 in cash with no financing contingency, pursuant to a definitive contract of sale which must be executed within thirty (30) days of the receipt of the Company’s Acceptance Letter and which must be consistent with contracts for the sale of like property in the Borough of Manhattan. The Company will be required to deposit into escrow, with the Landlord’s counsel, $50 upon execution of the definitive contract of sale as required by the Landlord’s Offer Notice. The transaction is to be completed by February 3, 2014, subject to the right of the Company to demand one thirty (30) day extension upon the payment of an additional $5 into the escrow. The Company will use existing cash and availability under the Loan Agreement to finance this purchase. On December 18, 2013, the Company announced that the Board of Directors declared a cash dividend of $0.15 per Class A and Common share in respect of the third quarter of fiscal 2014. The dividend is payable on March 17, 2014 to stockholders of record on January 31, 2014.

Subsequent Events

6 Months Ended

Nov. 30, 2013

17. Subsequent Events

On December 13, 2013, the Company delivered an acceptance of offer (“Acceptance Letter”) to purchase its headquarters space (both land and building) at 555 Broadway, New York, NY (the “Property”) from its landlord, ISE 555 Broadway, LLC (the “Landlord”).

Under the terms of the Amended and Restated Lease effective as of August 1, 1999 between the Landlord and the Company (the “Lease”), the Landlord was obligated to offer to sell the Property to the Company prior to marketing the Property for sale to a third party. Pursuant to Section 2.03 of the Lease, the Landlord made the required written offer pursuant to a notice dated October 16, 2013 (“Landlord’s Offer Notice”).

Under the terms of the Lease and the Landlord’s Offer Notice, by accepting the Landlord’s offer the Company is obligated to purchase the Property for $255 in cash with no financing contingency, pursuant to a definitive contract of sale which must be executed within thirty (30) days of the receipt of the Company’s Acceptance Letter and which must be consistent with contracts for the sale of like property in the Borough of Manhattan. The Company will be required to deposit into escrow, with the Landlord’s counsel, $50 upon execution of the definitive contract of sale as required by the Landlord’s Offer Notice. The transaction is to be completed by February 3, 2014, subject to the right of the Company to demand one thirty (30) day extension upon the payment of an additional $5 into the escrow. The Company will use existing cash and availability under the Loan Agreement to finance this purchase.

On December 18, 2013, the Company announced that the Board of Directors declared a cash dividend of $0.15 per Class A and Common share in respect of the third quarter of fiscal 2014. The dividend is payable on March 17, 2014 to stockholders of record on January 31, 2014.