Radyne Acquisition-Related Restructuring Plan - Details of Future Cash Payments (Details) - USD ($) |
Jan. 31, 2016 |
Jul. 31, 2015 |
Aug. 01, 2008 |
Jul. 31, 2008 |
|---|---|---|---|---|
| Radyne Acquisition Related Restructuring Plan [Abstract] | ||||
| Future lease payments to be made | $ 3,968,000 | $ 4,235,000 | $ 2,100,000 | $ 2,100,000 |
| Interest expense to be accreted in future periods | 530,000 | |||
| Total remaining payments | $ 4,498,000 |