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Derivatives - Narrative (Details) - USD ($)
3 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Dec. 29, 2018
Jan. 02, 2016
Forward Currency-Exchange Contracts [Abstract]        
Recognized losses $ (34,000) $ (37,000)    
Net unrealized losses included in AOCI expected to be reclassified to earnings over the next 12 months $ 268,000      
Cash Flow Hedging | Designated as Hedging Instrument | 2018 Swap Agreement        
Interest Rate Swaps [Abstract]        
Derivative, notional amount     $ 15,000,000  
Fixed rate of interest (in hundredths)     3.15%  
Cash Flow Hedging | Designated as Hedging Instrument | 2015 Swap Agreement        
Interest Rate Swaps [Abstract]        
Derivative, notional amount       $ 10,000,000
Fixed rate of interest (in hundredths)       1.50%