|
Income Taxes (Details) (USD $)
|
Apr. 30, 2011
|
Jul. 31, 2010
|
|---|---|---|
| Income Taxes | Â | Â |
| Total unrecognized tax benefits, excluding interests - Ending and beginning balances | $ 6,853,000 | $ 7,056,000 |
| Unrecognized tax benefits that would positively impact Comtech's effective tax rate, if recognized | 5,849,000 | 6,060,000 |
| Income taxes payable non-current | 4,914,000 | 5,220,000 |
| Interest accrued relating to income taxes, net of the related income tax benefit | $ 547,000 | $ 580,000 |