Note 3 Business Combination (Details) (Narrative) (MCU Business [Member], USD $)	0 Months Ended	12 Months Ended
	Jun. 27, 2013 N	Mar. 31, 2014
MCU Business [Member]
Business Acquisition [Line Items]
Business Acquisition, Name of Acquired Entity		System LSI Division of Samsung Electronics Co., Ltd.
Business Acquisition, Description of Acquired Entity		The acquired product line includes microcontrollers potentially useful in a number of applications, which have to date been principally used in consumer product applications.
Business Combination, Reason for Business Combination		To bolster our product portfolio and empower customers to utilize products from across our multiple product lines
Business Acquisition, Effective Date of Acquisition	Jun. 27, 2013
Business Acquisition, Cost of Acquired Entity, Purchase Price	$ 50,000,000
Business Acquisition, Cost of Acquired Entity, Cash Paid at Closing Date	20,000,000
Business Acquisition, Cost of Acquired Entity, Deferred Payments, Total	30,000,000
Business Acquisition, Cost of Acquired Entity, Deferred Payments, Each Installment	15,000,000
Business Acquisition, Cost of Acquired Entity, Deferred Payments, Number of Installment Payments	2
Business Acquisition, Cost of Acquired Entity, Due Date of First Installment Payment		Jun. 27, 2014
Business Acquisition, Cost of Acquired Entity, Due Date of Second Installment Payment		Dec. 31, 2014
Business Acquisition, Cost of Acquired Entity, Deferred Payments, Description of Variable Rate Basis	six-month LIBOR
Business Acquisition, Cost of Acquired Entity, Deferred Payments, Basis Spread on Variable Rate	3.00%
Business Combination, Acquisition Related Costs		403,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		$ 36,100,000