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Share Based Compensation (Details Textual) (USD $) | 6 Months Ended | 1 Months Ended | 6 Months Ended | 1 Months Ended | 6 Months Ended
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Jun. 30, 2012 | Mar. 31, 2012 Directors Stock Compensation Plan [Member] | Jun. 30, 2012 Directors Stock Compensation Plan [Member] | Feb. 29, 2012 Performance Incentive Plan [Member] | Jun. 30, 2012 Performance Incentive Plan [Member]
Share-Based Compensation (Textual) [Abstract] |  |  |  |  |
Amortized the expense equally over a service period |  |  | 1 year |  |
Common stock under DSCP to non-employee directors |  | 900 |  |  |
Unrecognized compensation expense related to the DSCP awards |  |  | $ 370,000 |  |
Granted awards, shares |  |  | 10,800 |  | 30,906
Vesting period | 3 years |  |  |  |
Cash payment received by executive officer |  |  |  | 181,500 |
Aggregate intrinsic value of the PIP awards |  |  |  |  | $ 1,200,000

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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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