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Stock-based compensation (Tables)

9 Months Ended

Sep. 30, 2012

Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

A summary of stock option activity under the Company’s share-based compensation plans for the nine months ended September 30, 2012 is presented in the following table:

		Options				Weighted Average Exercise Price				Weighted Average Remaining Contractual Life (Years)				Aggregate Intrinsic Value  (1)
Outstanding at beginning of period			378,394			$	14.91
Granted			15,813				7.13
Exercised			(1,384	)			6.46
Forfeited / expired			(77,169	)			18.99
Outstanding as of September 30, 2012			315,654			$	13.56				2.32			$	32,701
Exercisable as of September 30, 2012			199,300			$	15.34				1.49			$	32,701

(1) The intrinsic value of a stock option represents the amount by which the fair value of the underlying stock, measured by reference to the closing price of the common stock of $8.27 in the NASDAQ Global Select Market on September 30, 2012, exceeds the exercise price of the option.

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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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