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Acquisition
 9 Months Ended
Jun. 30, 2011
Acquisition [Abstract]  
ACQUISITION
5. ACQUISITION
Spectrum Design Solutions, Inc.
On July 23, 2008, we acquired Spectrum Design Solutions, Inc. (“Spectrum”), a company that performs wireless design services. Spectrum is now a wholly owned subsidiary. The acquisition was structured as a merger with a cash purchase price of $10.0 million. Of this amount, $4.0 million was paid on the acquisition date, $3.0 million was paid in January 2010, and the remaining $3.0 million was paid in July 2011. The July 2011 deferred payment of $3.0 million was recorded as a liability on our consolidated balance sheet at June 30, 2011 at its then current net present value. Implied interest was accrued on this value until the time the final payment was made in July 2011.