Note 12 - Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
Nov. 30, 2019	Dec. 01, 2018
Balance at beginning of year	$ 8,420	$ 8,887
Additions	684	622
Additions	3,077	1,625
Reductions	(1,484)	(763)
Settlements	(105)	(15)
Lapses in applicable statutes of limitation	(1,646)	(1,936)
Balance at end of year	$ 8,946	$ 8,420

Amount of unrecognized tax benefits.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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