Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	4 Months Ended	6 Months Ended		9 Months Ended	12 Months Ended			48 Months Ended
	Jun. 30, 2015	Jun. 02, 2015	Sep. 23, 2014	Jun. 02, 2015	Dec. 16, 2014	Mar. 04, 2014	Jun. 02, 2015	Jun. 03, 2014	May. 28, 2013	May. 28, 2013	Dec. 31, 2014
Income Taxes [Line Items]
Prepaid income taxes		$ 3		$ 3			$ 3	$ 908
Domestic Production Activities Deductions (DPAD) refunds received or expected	$ 296				$ 418	$ 347	293	714		$ 1,061
Net operating loss (NOL) carry forward - state		46		46			46	214
Valuation allowances (released) placed								222	$ 135
Income taxes (benefit)		$ 140	$ 138	$ (82)	$ (606)		3,047	853	2,388
Unrecognized tax benefits											$ 688
Income taxes paid, net of refunds							582	1,454	1,521
Final Repair Regulations [Member]
Income Taxes [Line Items]
Income taxes (benefit)							42	(6)	36
Effect of the Final Repair Regulations on change in accounting method							$ (122)	$ 17	$ (105)