Income Taxes (Narrative) (Details) $ in Thousands	12 Months Ended
	Nov. 28, 2015 USD ($) subsidiary	Nov. 29, 2014 USD ($) subsidiary	Nov. 30, 2013 USD ($) subsidiary	May. 01, 2014 USD ($)
Operating Loss Carryforwards [Line Items]
Unrecognized tax benefits that would impact the effective tax rate if recognized	$ 2,797	$ 1,555
Accrued for the payment of interest and penalties	281	273
Increase (decrease) in unrecognized tax benefits is reasonably possible	(282)
Operating loss carryforwards, limitations on use	21,000
Operating loss carryforward, domestic	35,967
Operating loss carryforwards, subject to expiration	1,190
Operating loss carryforwards, not subject to expiration	5,023
Valuation allowance, deferred tax asset, change in amount	9,587	166
Repatriated foreign earnings	$ 26	$ 17	$ 54
Number of foreign subsidiaries | subsidiary	1	1	1
Undistributed foreign earnings	$ 192,741
Stanadyne [Member]
Operating Loss Carryforwards [Line Items]
General business tax carryforward				$ 2,365
Federal [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 70,220
Capital Loss Carryforward [Member] | Stanadyne [Member]
Operating Loss Carryforwards [Line Items]
Tax credit carryforward				$ 26,685