Stockholder Rights Plan

12 Months Ended

Dec. 31, 2011

Comprehensive Income (Loss) and Stockholder Rights Plan [Abstract]

Stockholder Rights Plan

8. Stockholder Rights Plan

In November, 1996, we adopted a Stockholder Rights Plan (“Rights Plan”) and declared a dividend distribution of one Preferred Stock Purchase Right (“Right”) for each share of common stock, payable to holders of record on December 3, 1996. Under the Rights Plan, each stockholder received one Right for each share of common stock owned. Each Right entitled the holder to buy one one-hundredth (1/100) of a share of Cohu’s Series A Preferred Stock for $90. As a result of the two-for-one stock split in September, 1999, each share of common stock was associated with one-half of a Right entitling the holder to purchase one two-hundredth (1/200) of a share of Series A Preferred Stock for $45. In November, 2006, we amended and restated our existing Rights Plan to extend its term to November 9, 2016 and make certain other changes. Pursuant to the amendment, to reflect the increase in the price of our common stock since the adoption of the Rights Plan, the exercise price of each Right was increased to $190. Consequently, each one-half of a Right entitles the holder to purchase one two-hundredth (1/200) of a share of Series A Preferred Stock for $95. The Rights are not presently exercisable and will only become exercisable following the occurrence of certain specified events. If these specified events occur, each Right will be adjusted to entitle its holder to receive, upon exercise, common stock having a value equal to two times the exercise price of the Right, or each Right will be adjusted to entitle its holder to receive common stock of the acquiring company having a value equal to two times the exercise price of the Right, depending on the circumstances. The Rights expire on November 9, 2016, and we may redeem them for $0.001 per Right. The Rights do not have voting or dividend rights and, until they become exercisable, have no dilutive effect on our earnings per share.