|
Debt and Leases Debt (Details) (USD $)
In Thousands, unless otherwise specified |
Apr. 30, 2013
|
|---|---|
| Debt Instrument [Line Items] | |
| Debt and Capital Leases, minimum payment due in less than 12 months | $ 410 |
| Debt and Capital Leases, Future Minimum Payments, Due in Two Years | 331 |
| Debt and Capital Leases, Future Minimum Payments, Due in Three Years | 286 |
| Debt and Capital Leases, Future Minimum Payments, Due in Four Years | 233 |
| Debt and Capital Leases, Future Minimum Payments, Due in Five Years | 245 |
| Debt and Capital Leases, Future Minimum Payments, Due Thereafter | 5,749 |
| Debt and Capital Leases, Future Minimum Payments Due | $ 7,254 |