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Shareholders' Equity (Information About Nonvested Options) (Details) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Options |  |  |
Beginning balance | 410,508 |  |
Granted | 464,335 | 296,000 | 75,000
Vested | (78,462) |  |
Forfeited | (106,452) |  |
Ending balance | 689,929 | 410,508 |
Weighted average grant- date fair value |  |  |
Beginning balance | $ 1.48 |  |
Granted | 1.64 |  |
Vested | 1.51 |  |
Forfeited | 1.75 |  |
Ending balance | $ 1.55 | $ 1.48 |

X
- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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Period Type: | duration

X
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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X
- Definition Number of non-vested options outstanding. + References No definition available. + Details
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X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Number of non-vested options forfeited. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of non-vested options forfeited. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of non-vested options outstanding. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Number of options vested. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of options vested. + References No definition available. + Details
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