Fair Value Measurements (Narrative) (Details) - USD ($) |
3 Months Ended | 9 Months Ended | |||
---|---|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
Dec. 31, 2019 |
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||||
Transfers of assets and liabilities between level 1, 2, 3 | $ 0 | $ 0 | $ 0 | $ 0 | |
Recurring [Member] | |||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||||
Financial liabilities | $ 483,000 | $ 483,000 | $ 342,000 |