Major Customers and Foreign Sales (Details) - Customer	6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenue, Major Customer [Line Items]
Revenue, number of major customers	0	1
Revenues, percentage	100.00%	100.00%
United States
Revenue, Major Customer [Line Items]
Revenues, percentage	23.00%	17.00%
Other
Revenue, Major Customer [Line Items]
Revenues, percentage	3.00%	3.00%
Total North America
Revenue, Major Customer [Line Items]
Revenues, percentage	26.00%	20.00%
China
Revenue, Major Customer [Line Items]
Revenues, percentage	22.00%	28.00%
Taiwan
Revenue, Major Customer [Line Items]
Revenues, percentage	12.00%	18.00%
Other
Revenue, Major Customer [Line Items]
Revenues, percentage	22.00%	16.00%
Total Asia
Revenue, Major Customer [Line Items]
Revenues, percentage	56.00%	62.00%
Total Europe
Revenue, Major Customer [Line Items]
Revenues, percentage	18.00%	18.00%
Net Revenues | Customer Concentration Risk | Customer Number One
Revenue, Major Customer [Line Items]
Concentration risk, percentage		19.00%