|
Supplementary Financial Information (Schedule of Inventory Table) (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Other Financial Information [Abstract] | ||
| Raw materials | $ 6,165 | $ 10,613 |
| Work in process | 351 | 985 |
| Total | $ 6,516 | $ 11,598 |