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Net Income Per Share Net Income Per Share (Schedule of Securities Excluded from Net Income Per Share) (Details) - $ / shares | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Options excluded from diluted net income per share | 75,000 | 200 | 75,000 | 200
Warrants excluded from diluted net income per share |  | 250,000 |  | 250,000
Exercise price of excluded options | $ 5.62 |  | $ 5.62 |
Exercise price of excluded warrants |  | $ 187.50 |  | $ 187.50
Minimum [Member] |  |  |  |
Exercise price of excluded options |  | 283.25 |  | 283.25
Maximum [Member] |  |  |  |
Exercise price of excluded options |  | $ 357.00 |  | $ 357.00

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- Definition Exercise price of the option. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Footnote 5 + Details
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- Definition Exercise price of the warrants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column A + Details
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