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Stock-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2012
Stock Based Compensation [Abstract] |
Schedule of stock option activity | The Company had a stock option plan, the 1999 Stock Option Plan, that was adopted in 1999 and that was terminated on March 9, 2009. Incentive stock options were granted annually to key employees of NBI and its subsidiaries from 1999 to 2005 and none have been granted since 2005. All of the stock options are vested.
Options |  | Shares |  |  | Weighted Average Exercise Price Per Share |  |  | Weighted Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value |
Outstanding at January 1, 2012 |  |  | 77,000 |  |  | $ | 22.82 |  |  |  |  |  |  |
Exercised |  |  | 4,000 |  |  |  | 14.83 |  |  |  |  |  |  |
Forfeited or expired |  |  | --- |  |  |  | --- |  |  |  |  |  |  |
Outstanding September 30, 2012 |  |  | 73,000 |  |  | $ | 23.26 |  |  |  | 3.97 |  |  | $ | 745 |
Exercisable at September 30, 2012 |  |  | 73,000 |  |  | $ | 23.26 |  |  |  | 3.97 |  |  | $ | 745 |

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- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
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