XML 14 R23.htm IDEA: XBRL DOCUMENT v2.3.0.15

Stock Options (Tables)

9 Months Ended

Sep. 30, 2011

Stock Options

Summary of option activity under stock option plans

		Number of options		Weighted average exercise price			Weighted average remaining contractual term (years)		Aggregate intrinsic value ($)
									(Dollars in Thousands)
Options outstanding at December 31, 2010		764,982		$	20.65
Plus: Options granted		3,000		16.06
Less:
Options exercised		7,092		17.95
Options expired		81,218		19.93
Options forfeited		46,797		21.41
Options outstanding at September 30, 2011		632,875		20.72			3.56		$	568
Options fully vested and exercisable at September 30, 2011		320,640		24.54			2.64		85

X

- Details

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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

-Topic 718

-SubTopic 10

-Publisher FASB

-Number

-Article

-Subparagraph (c)(1)

-Name Accounting Standards Codification

-Paragraph 2

-Section 50

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

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration