Annual report pursuant to Section 13 and 15(d)

Debt (Schedule Of Interest Information) (Details)

v3.8.0.1
Debt (Schedule Of Interest Information) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]      
Interest incurred, including commitment fees $ 997 $ 1,353 $ 1,496
Deferred finance cost amortization 369 1,424 304
Deferred finance cost write-off due to loan modification   869  
Capitalized interest     (771)
Other interest not related to debt [1] 48 72 296
Interest expense, net 1,414 2,613 1,325
Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Deferred finance cost amortization $ 369 $ 319 $ 304
Various Debt Instruments [Member]      
Debt Instrument [Line Items]      
Average effective interest rate, excluding commitment fees 6.72% 5.52% 4.09%
[1] The "Other interest not related to debt" line item includes interest income.