Acquisition (Details) - USD ($) $ in Thousands		12 Months Ended
	Nov. 04, 2013	Sep. 30, 2015	Sep. 30, 2014
Business Acquisition [Line Items]
Business Combination, Bargain Purchase, Gain Recognized, Amount		$ 0	$ 462
Payments to Acquire Businesses, Net of Cash Acquired		0	500
Myricom, Inc [Member]
Business Acquisition [Line Items]
Business Combination, Bargain Purchase, Gain Recognized, Amount	$ 462	$ 100	$ 200
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	93
Payments to Acquire Businesses, Net of Cash Acquired	$ 500