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Note 7 - Revolving Credit Agreement (Tables)
6 Months Ended
Jul. 01, 2018
Notes Tables  
Interest Rate Margins on Outstanding Debt [Table Text Block]
Consolidated Senior Leverage Ratio
Applicable Basis
Points for Overnight
LIBOR Loans
Applicable Basis
Points for
Base Rate Loans
Applicable Basis
Points for Unused
Fee
Less than 1.50 to 1.00
185
(50)
20
Greater than or equal to 1.50 to 1.00 but less than 2.50 to 1.00
200
(25)
15
Greater than or equal to 2.50 to 1.00
215
0
10