Inventories consist of the following at: | | | | | | | | | | | April 30, 2017 | | July 31, 2016 | Raw materials and components | | $ | 54,551,000 |
| | 54,723,000 |
| Work-in-process and finished goods | | 28,672,000 |
| | 32,829,000 |
| Total inventories | | 83,223,000 |
| | 87,552,000 |
| Less reserve for excess and obsolete inventories | | 15,886,000 |
| | 16,198,000 |
| Inventories, net | | $ | 67,337,000 |
| | 71,354,000 |
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