Hedge Accounting (Schedule Of Derivative Instruments On The Balance Sheet At Fair Value) (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Derivative financial instruments - current portion	$ 41,000
Derivative financial instruments - non-current portion	145,000
Total derivatives	186,000
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total derivatives designated as heding instruments	186,000
Total derivatives	186,000
Designated as Hedging Instrument [Member] \| Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative financial instruments - non-current portion	145,000
Interest Rate Contract [Member] \| Designated as Hedging Instrument [Member] \| Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative financial instruments - current portion	$ 41,000

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

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