Contingent Liabilities (Narrative) (Details) |
6 Months Ended | |
|---|---|---|
|
Mar. 31, 2018
USD ($)
item
|
Jun. 30, 2018
USD ($)
|
|
| Other Commitments [Line Items] | ||
| Loss contingency, range of possible loss, maximum | $ 10,000,000 | |
| Number of class action lawsuits filed | item | 2 | |
| Possible losses accrued | $ 0 | |
| Scenario, Forecast [Member] | ||
| Other Commitments [Line Items] | ||
| Total obligated upfront payments | $ 500,000 |
| X | ||||||||||
- Definition Number of class action lawsuits filed No definition available.
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| X | ||||||||||
- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. No definition available.
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| X | ||||||||||
- Definition Amount of increase (decrease) in loss contingency liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| 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.
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| X | ||||||||||
- Details
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