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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 $ in Millions | 1 Months Ended
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Mar. 31, 2013 USD ($) | Mar. 31, 2012 USD ($) employee
Patent Sale and License |  |
Purchase agreement amount |  | $ 4.3
Number of employees of entity's India subsidiary accepted employment in purchaser | employee |  | 15
Cash received upon execution of the agreement, net of transaction costs |  | $ 2.2
Gain on sale of assets |  |
Patent Sale and License |  |
Final payment received | $ 0.6 |

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