Major Customers and Foreign Sales (Details)	3 Months Ended		6 Months Ended
	Mar. 31, 2013 Customer	Mar. 31, 2012 Customer	Mar. 31, 2013 Customer	Mar. 31, 2012 Customer
Revenue, Major Customer [Line Items]
Revenue, number of major customers	2	2	0	2
Revenues, percentage	100.00%	100.00%
Customer Number One [Member]
Revenue, Major Customer [Line Items]
Revenue, major customer, percentage	13.00%	17.00%		16.00%
Customer Number Two [Member]
Revenue, Major Customer [Line Items]
Revenue, major customer, percentage	10.00%	11.00%		11.00%
UNITED STATES
Revenue, Major Customer [Line Items]
Revenues, percentage	24.00%	7.00%
ASIA [Member]
Revenue, Major Customer [Line Items]
Revenues, percentage	57.00%	70.00%
CHINA [Member]
Revenue, Major Customer [Line Items]
Revenues, percentage	29.00%	44.00%
TAIWAN [Member]
Revenue, Major Customer [Line Items]
Revenues, percentage	17.00%	7.00%
Other [Member]
Revenue, Major Customer [Line Items]
Revenues, percentage	11.00%	19.00%
EUROPE [Member]
Revenue, Major Customer [Line Items]
Revenues, percentage	19.00%	23.00%
GERMANY
Revenue, Major Customer [Line Items]
Revenues, percentage	6.00%	6.00%
Other [Member]
Revenue, Major Customer [Line Items]
Revenues, percentage	13.00%	17.00%
Maximum [Member]
Revenue, Major Customer [Line Items]
Revenue, major customer, percentage			10.00%