Compensation Plans (Details 2) (USD $) In Thousands, except Per Share data, unless otherwise specified	Feb. 29, 2012	Nov. 30, 2011
Summary of stock option activity
Options outstanding at beginning balance	14	14
Options Outstanding, Weighted Average Exercise Price, beginning balance	$ 11.44	$ 11.44
Options outstanding at end of period	14	14
Options Outstanding, Weighted Average Exercise Price, ending balance	$ 11.44
Options exercisable at end of period	14
Options exercisable, Weighted Average Exercise Price, end of period	$ 11.44