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Debt (Schedule Of Interest Information) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Debt Instrument [Line Items] |  |  |  |
Interest expense related to debt, including commitment fees |  | $ (222) | $ (257) | $ (796)
Deferred finance cost amortization |  |  | (357) | (293)
Other interest expense not related to debt |  | (16) | 33 | (23)
Interest income | $ 111 | 3 | 142 | 4
Interest income (expense), net | $ 111 | (327) | (273) | (1,108)
Revolving Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Deferred finance cost amortization |  | $ (92) | $ (191) | $ (293)
Various Debt Instruments [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Average effective interest rate, excluding commitment fees |  | 6.54% | 7.09% | 6.87%

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- Definition The average effective interest rate during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Aggregate amount of interest paid or due on all long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.8) -URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260 + Details
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