Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2012

Accounting Policies [Abstract]

Reconciliation of weighted-average shares used in computing net income per share

Reconciliation of weighted-average shares used in computing net income per share attributable to Micrel, Incorporated shareholders is as follows (in thousands):

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2012	2011	2012	2011
Weighted average common shares outstanding	59,242	62,043	60,096	62,017
Dilutive effect of stock options outstanding using the treasury stock method	647	422	678	833
Shares used in computing diluted net income per share attributable to Micrel, Incorporated shareholders	59,889	62,465	60,774	62,850