Segment Reporting (Narrative) (Details) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
|
Jun. 30, 2021
USD ($)
|
Jun. 30, 2020
USD ($)
|
Jun. 30, 2021
USD ($)
segment
|
Jun. 30, 2020
USD ($)
|
Dec. 31, 2020
USD ($)
|
|
| Segment Reporting Information [Line Items] | |||||
| Number of business segments | segment | 2 | ||||
| Total revenues | $ 81,247,000 | $ 74,197,000 | $ 157,340,000 | $ 157,801,000 | |
| Foreign Locations [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Total revenues | 0 | $ 0 | |||
| Long lived assets | $ 0 | $ 0 | $ 0 | ||