Derivatives (Summary of Derivative Instruments) (Details) - Interest Rate Swap [Member] $ in Thousands	Jun. 27, 2020 USD ($) Rate
Effective September 1, 2016 through September 1, 2021 [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 25,000
Fixed Interest Rate | Rate	3.105%
Effective September 1, 2015 through September 1, 2021 [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 25,000
Fixed Interest Rate | Rate	3.304%
Effective November 7, 2014 through November 7, 2024 [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 6,005	[1]
Fixed Interest Rate | Rate	4.50%
Derivative, Amortizing Notional Amount	$ 35

[1] Interest rate swap notional amount amortizes by $35 monthly to maturity.