Basis of Presentation (Details) - USD ($) $ in Thousands |
6 Months Ended | ||
|---|---|---|---|
Mar. 07, 2017 |
Jan. 11, 2017 |
Jan. 31, 2017 |
|
| Basis of Presentation (Textual) | |||
| Initial penalty payment | $ 15,000 | ||
| Subsequent Event [Member] | |||
| Basis of Presentation (Textual) | |||
| Settlement of initial payment | $ 2,250 | ||
| Additional settlement payment | $ 7,200 | ||
| Straight Path [Member] | |||
| Basis of Presentation (Textual) | |||
| Ownership in straight path spectrum | 100.00% | ||
| Straight Path IP Group [Member] | |||
| Basis of Presentation (Textual) | |||
| Ownership in straight path spectrum | 84.50% |