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Sale of I/O Technology (Details) (Sale of license of a portion of intellectual property pertaining to high-speed serial I/O technology, USD $)
 1 Months Ended 3 Months Ended
Jul. 31, 2012
Mar. 31, 2012
Item
Mar. 31, 2013
Jun. 30, 2013
Sale of license of a portion of intellectual property pertaining to high-speed serial I/O technology
        
Patent Sale and License        
Purchase agreement amount   $ 4,300,000    
Number of employees of entity's India subsidiary accepted employment in purchaser   15    
Cash received upon execution of the agreement, net of transaction costs   2,200,000    
Holdback amount   1,900,000   0
Holdback payment received $ 1,300,000   $ 600,000