Long-Term Debt and Credit Arrangements (Revolving Credit Facility) (Details) - Amended Revolving Credit Facility [Member] $ in Thousands	3 Months Ended
	Mar. 28, 2020 USD ($) Rate	Dec. 28, 2019 Rate
Line of Credit Facility [Line Items]
Basis Spread on Variable Rate at End of Period | Rate	1.75%
Commitment Fee Percentage | Rate	0.375%
Debt, Weighted Average Interest Rate | Rate	4.64%	4.79%
Current Borrowing Capacity Accessible to the Company	$ 10,987
Line of Credit Facility, Amended Minimum Borrowing Capacity for No Financial Covenants	15,000
Remaining Borrowing Capacity	$ 25,987
Minimum [Member]
Line of Credit Facility [Line Items]
Fixed Charge Coverage Ratio	1.1
Line of Credit Facility, Increase (Decrease), Other, Net	$ 0
Maximum [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Increase (Decrease), Other, Net	5,000
Median [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Increase (Decrease), Other, Net	$ 2,500
Alternative [Member] | Minimum [Member] | Libor [Member]
Line of Credit Facility [Line Items]
Basis Spread on Variable Rate | Rate	1.50%
Alternative [Member] | Maximum [Member] | Libor [Member]
Line of Credit Facility [Line Items]
Basis Spread on Variable Rate | Rate	2.00%
Alternative B [Member] | Federal Funds [Member]
Line of Credit Facility [Line Items]
Basis Spread on Variable Rate | Rate	0.50%
Alternative B [Member] | Daily Libor [Member]
Line of Credit Facility [Line Items]
Basis Spread on Variable Rate | Rate	1.00%
Alternative B [Member] | Minimum [Member] | Daily Libor [Member]
Line of Credit Facility [Line Items]
Basis Spread on Variable Rate | Rate	0.50%
Alternative B [Member] | Maximum [Member] | Daily Libor [Member]
Line of Credit Facility [Line Items]
Basis Spread on Variable Rate | Rate	1.00%
Before Amendment [Member]
Line of Credit Facility [Line Items]
Maximum Borrowing Capacity	$ 150,000
Line of Credit Facility, Amended Minimum Borrowing Capacity for No Financial Covenants	16,500
After Amendment [Member]
Line of Credit Facility [Line Items]
Maximum Borrowing Capacity	120,000
Line of Credit Facility, Amended Minimum Borrowing Capacity for No Financial Covenants	$ 15,000