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STOCKHOLDERS' EQUITY: (Dividends) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
0 Months Ended 3 Months Ended 12 Months Ended
Jan. 12, 2015
Nov. 30, 2014
Nov. 30, 2014
Nov. 30, 2013
Nov. 30, 2012
Dividend [Abstract]          
Cash dividends declared and paid per share   $ 0.125us-gaap_CommonStockDividendsPerShareCashPaid $ 0.13us-gaap_CommonStockDividendsPerShareCashPaid $ 0.00us-gaap_CommonStockDividendsPerShareCashPaid $ 0.00us-gaap_CommonStockDividendsPerShareCashPaid
Dividends paid   $ 4,927us-gaap_PaymentsOfDividends $ 4,927us-gaap_PaymentsOfDividends $ 0us-gaap_PaymentsOfDividends $ 0us-gaap_PaymentsOfDividends
Dividend declared per share $ 0.125us-gaap_CommonStockDividendsPerShareDeclared