Investments (Details) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended
Aug. 31, 2014	Aug. 31, 2013	Nov. 30, 2013
Investments
Shares of common stock held in Centaur Media	1,952,462		2,452,462
Shares of Centaur Media common stock sold	500,000
Proceeds from sale of shares	$ 566	$ 1,160
Pre-Tax Gain on sale of common stock in Centaur Media plc	318	504
Investment in Centaur Media
Fair value	1,916		2,208
Cost	1,014		1,274
Unrealized gain	$ 902		$ 934

Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income.

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Balance held at close of period in number of shares.

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