Debt And Interest Rate Swap Contracts (Schedule Of Annual Principal Payments) (Details) $ in Thousands	Jun. 30, 2015 USD ($)
Debt Instrument [Line Items]
Remainder of 2015	$ 1,865
2016	5,331
2017	3,572
2018	3,572
2019 and thereafter	5,357
Total scheduled principal payments	19,697
Citibank II [Member]
Debt Instrument [Line Items]
Remainder of 2015	80
2016	1,760
Total scheduled principal payments	1,840
$25 Million Term Loan [Member]
Debt Instrument [Line Items]
Remainder of 2015	1,785
2016	3,571
2017	3,572
2018	3,572
2019 and thereafter	5,357
Total scheduled principal payments	$ 17,857