Major Customers and Foreign Sales (Details)	12 Months Ended
	Sep. 30, 2014 Customer	Sep. 30, 2013 Customer	Sep. 30, 2012 Customer
Revenue, Major Customer [Line Items]
Revenue, number of major customers	2	1	1
Revenues, percentage	100.00%	100.00%	100.00%
United States
Revenue, Major Customer [Line Items]
Revenues, percentage	21.00%	20.00%	13.00%
Taiwan
Revenue, Major Customer [Line Items]
Revenues, percentage	16.00%	14.00%	9.00%
China
Revenue, Major Customer [Line Items]
Revenues, percentage	14.00%	39.00%	43.00%
Other
Revenue, Major Customer [Line Items]
Revenues, percentage	15.00%	11.00%	14.00%
Total Asia
Revenue, Major Customer [Line Items]
Revenues, percentage	45.00%	64.00%	66.00%
Germany
Revenue, Major Customer [Line Items]
Revenues, percentage	16.00%	5.00%	8.00%
Other
Revenue, Major Customer [Line Items]
Revenues, percentage	18.00%	11.00%	13.00%
Total Europe
Revenue, Major Customer [Line Items]
Revenues, percentage	34.00%	16.00%	21.00%
Customer Number One
Revenue, Major Customer [Line Items]
Revenue, major customer, percentage	18.00%	20.00%	11.00%
Customer Number Two
Revenue, Major Customer [Line Items]
Revenue, major customer, percentage	11.00%