|
Preferred and Common Stock (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
12 Months Ended | 0 Months Ended | |
|---|---|---|---|
|
Dec. 31, 2014
|
Jan. 25, 2012
|
Dec. 31, 2013
|
|
| Class of Stock [Line Items] | |||
| Preferred Stock, shares authorized | 5,000,000 | 5,000,000 | |
| Common stock, shares authorized | 185,000,000 | 185,000,000 | |
| Number of additional shares authorized | 16,400,000 | ||
| Common Stock [Member] | |||
| Class of Stock [Line Items] | |||
| Shares issued during the period | 14,950,000 | ||
| Price per share | $ 4.15 | ||
| Gross proceeds from issuance of common stock | $ 62.0 | ||
| Payments of stock issuance costs | 3.8 | ||
| Net proceeds from issuance of common stock | $ 58.2 | ||
| Series A Preferred Stock [Member] | |||
| Class of Stock [Line Items] | |||
| Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | 0.01 | ||
| Exercise price of warrants or rights | 120 | ||
| Exercise contingency, acquisition or intended acquisition percentage | 15.00% |