Note 17 Subsequent Events	9 Months Ended
Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events [Text Block]	17. Subsequent Events On February 2, 2015, we signed an agreement to acquire RadioPulse, Inc., or RadioPulse. The purchase price consists of up to $16.5 million in cash and up to $6.0 million of earnout payments during the next three years. RadioPulse is a Korean semiconductor company that focuses on wireless connectivity in various market applications. During the year ended December 31, 2014, RadioPulse's revenues were approximately $7.9 million. The acquisition is expected to be consummated by March 31, 2015.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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