Share-Based Compensation (Narrative) (Details) (USD $)	6 Months Ended
Jun. 30, 2013
Employee Stock Options
Unrecognized compensation cost related to share-based compensation	$ 941,000
Weighted-average service period, years	1 year 10 months 24 days
Restricted Stock Rights
Unrecognized compensation cost related to share-based compensation	$ 366,000
Weighted-average service period, years	0 years 10 months 24 days

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

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

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Period Type:	duration