| **Net Income (Loss) Per Share (Tables)**                                                       | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
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| **Net Income (Loss) Per Share [Abstract]**                                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| Calculation of net loss per share, basic and diluted                                           | Our basic net (loss) income per share amounts have been computed by dividing net (loss) income by the weighted-average number of common shares outstanding during the period. For 2013 and 2012, we reported net losses and, therefore, potential common shares were not included since such inclusion would have been anti-dilutive. For 2011, we reported net income, and the computation of diluted earnings per share is based upon the weighted-average number of our common shares and dilutive effect, determined using the treasury stock method, of potential common shares outstanding. As of December 31, 2012 and 2011, our 28 and 98, respectively, shares of unvested restricted stock with non-forfeitable rights to dividends were outstanding; all such shares were vested at the end of December 31, 2013. The allocation of 2012 net losses and the 2011 net income to these participating securities pursuant to the two-class method is not material to both basic and diluted earnings per share. The calculations of net loss per share, basic and diluted, are as follows:  Net (Loss) Income (Numerator)  Weighted AverageCommon Shares (Denominator)  Per Share Amount 2013:      Basic and diluted $(42,572)  55,798  $(0.76)2012:            Basic and diluted $(35,431)  34,754  $(1.02)2011:            Basic $10,381   33,375  $0.31   Dilutive effect of stock options  -   66       Dilutive effect of restricted stock  -   53     Diluted $10,381   33,494  $0.31   |
| Schedule of antidilutive common shares excluded from computation of diluted earnings per share | During 2013, 2012 and 2011, anti-dilutive common shares excluded from diluted per share amounts consist of the following:  2013  2012  2011  WeightedAverage Number  WeightedAverage Exercise Price  WeightedAverage Number  WeightedAverage Exercise Price  WeightedAverage Number  WeightedAverage Exercise PriceOptions  5,969  $11.54   5,947  $12.32   4,543  $14.92Restricted stock  -       60       45    Total  5,969       6,007       4,588                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |

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| - Definition
Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257
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| - Definition
Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257
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