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Major Customers and Foreign Sales (Details) - Customer | 9 Months Ended
--- | ---
Jun. 30, 2016 | Jun. 30, 2015
Revenue, Major Customer [Line Items] |  |
Revenue, number of major customers | 1 | 2
Revenues, percentage | 100.00% | 100.00%
United States |  |
Revenue, Major Customer [Line Items] |  |
Revenues, percentage | 20.00% | 25.00%
Other |  |
Revenue, Major Customer [Line Items] |  |
Revenues, percentage | 2.00% | 2.00%
Total North America |  |
Revenue, Major Customer [Line Items] |  |
Revenues, percentage | 22.00% | 27.00%
China |  |
Revenue, Major Customer [Line Items] |  |
Revenues, percentage | 24.00% | 26.00%
Malaysia |  |
Revenue, Major Customer [Line Items] |  |
Revenues, percentage | 22.00% | 10.00%
Taiwan |  |
Revenue, Major Customer [Line Items] |  |
Revenues, percentage | 13.00% | 15.00%
Other |  |
Revenue, Major Customer [Line Items] |  |
Revenues, percentage | 6.00% | 8.00%
Total Asia |  |
Revenue, Major Customer [Line Items] |  |
Revenues, percentage | 65.00% | 59.00%
Germany |  |
Revenue, Major Customer [Line Items] |  |
Revenues, percentage | 2.00% | 5.00%
Germany |  |
Revenue, Major Customer [Line Items] |  |
Revenues, percentage | 11.00% | 9.00%
Total Europe |  |
Revenue, Major Customer [Line Items] |  |
Revenues, percentage | 13.00% | 14.00%
Net Revenues | Customer Concentration Risk | Customer Number One |  |
Revenue, Major Customer [Line Items] |  |
Concentration risk, percentage | 14.00% | 18.00%
Net Revenues | Customer Concentration Risk | Customer Number Two |  |
Revenue, Major Customer [Line Items] |  |
Concentration risk, percentage |  | 12.00%

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