Stockholders' Equity (Preferred Stock and Voting Rights) (Narrative) (Details) (USD $)
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12 Months Ended | |||
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Dec. 31, 2014
vote
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Dec. 31, 2013
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Nov. 02, 2012
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Dec. 31, 2012
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Preferred stock, shares authorized | 10,000,000 | 10,000,000 | ||
Preferred stock, par value | $ 0.001 | $ 0.001 | $ 0.001 | |
Preferred stock, shares issued | 0 | 0 | ||
Preferred stock, shares outstanding | 0 | 0 | ||
Number of voting rights per share | 1 | |||
Series A [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Preferred stock, shares authorized | 1,000,000 | |||
Preferred stock, par value | $ 0.001 | |||
Undesignated Stock [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Preferred stock, shares authorized | 9,000,000 | |||
Preferred stock, par value | $ 0.001 |