Stock Options (Details 5) (USD $)	12 Months Ended
Dec. 31, 2012
Stock options
Unrecognized compensation expense expected to be recognized
2013	$ 373,000
2014	103,000
2015	1,000
Total unrecognized compensation expense	477,000
Cliff Options
Unrecognized compensation expense expected to be recognized
Total unrecognized compensation expense	$ 778,000
Period for recognition of unrecognized expense	2 years 3 months 18 days

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Amount of unrecognized cost of option awards expected to be recognized in the next fiscal year following the current fiscal year.

+ References

No definition available.

+ Details

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- Definition

Amount of unrecognized cost of option awards expected to be recognized in the second fiscal year following the current fiscal year.

+ References

No definition available.

+ Details

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- Definition

Amount of unrecognized cost of option awards expected to be recognized in the third fiscal year following the current fiscal year.

+ References

No definition available.

+ Details

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- Definition

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.

+ 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 (i)

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

+ Details

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- Definition

Aggregate unrecognized cost of option awards made to employees under a stock option plan or plans, that have yet to vest.

+ References

No definition available.

+ Details

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