Debt (Schedule of Interest Information) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Debt Instrument [Line Items] | |||
| Interest expense related to debt, including commitment fees | $ (257) | $ (997) | |
| Deferred finance costs amortization | (191) | (369) | |
| Interest income | $ 733 | 270 | 7 |
| Other interest expense not related to debt | 33 | (55) | |
| Interest income (expense), net | $ 733 | $ (145) | $ (1,414) |
| Various Debt Instruments [Member] | |||
| Debt Instrument [Line Items] | |||
| Average effective interest rate, excluding commitment fees | 7.09% | 6.72% | |
| X | ||||||||||
- Definition Other Interest, Other Than Debt No definition available.
|
| X | ||||||||||
- Definition Amount of amortization expense attributable to debt issuance costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The average effective interest rate during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Aggregate amount of interest paid or due on all long-term debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The net amount of nonoperating interest income (expense). No definition available.
|
| X | ||||||||||
- Definition The aggregate amount of income from investments (for example, dividends) not considered a component of the entity's core operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|