Discontinued Operations (Balance sheet) (Details) - USD ($) $ in Thousands	Mar. 26, 2022	Dec. 25, 2021
Current Assets of Discontinued Operations:
Current Assets Held for Discontinued Operations	$ 4,695	$ 5,991
Long Term Assets of Discontinued Operations:
Long Term Assets Held for Discontinued Operations	2,400	2,752
Current Liabilities of Discontinued Operations:
Current Liabilities Held for Discontinued Operations	2,744	5,362
Long Term Liabilities of Discontinued Operations
Long Term Liabilities Held for Discontinued Operations	4,134	4,488
Discontinued Operations, Disposed of by Sale | Commercial Divestiture
Current Assets of Discontinued Operations:
Receivables, net	3,060	3,406
Inventories, net	1,183	1,927
Prepaid expenses	452	658
Current Assets Held for Discontinued Operations	4,695	5,991
Long Term Assets of Discontinued Operations:
Property, plant and equipment, net	292	292
Operating lease right of use assets	202	242
Other assets	1,906	2,218
Long Term Assets Held for Discontinued Operations	2,400	2,752
Current Liabilities of Discontinued Operations:
Accounts payable	85	2,133
Accrued expenses	2,487	3,062
Current portion of operating lease liabilities	172	167
Current Liabilities Held for Discontinued Operations	2,744	5,362
Long Term Liabilities of Discontinued Operations
Operating lease liabilities	30	75
Other long term liabilities	4,104	4,413
Long Term Liabilities Held for Discontinued Operations	$ 4,134	$ 4,488