Technology Agreements (Details) - Patent Infringement Litigation Versus Chrimar Systems, Inc. - USD ($) $ in Millions		3 Months Ended
	Jul. 16, 2013	Jun. 30, 2012
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Amount paid to defendant for patent license fees in settlement agreement	$ 1.4
Pending Litigation
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Amount capitalized for patents subject to litigation		$ 1.2
Recorded estimate for probably loss for litigation		$ 0.3