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Stock-Based Compensation and Stock Options
 6 Months Ended
Jun. 30, 2011
Stock-Based Compensation and Stock Options [Abstract]  
Stock-Based Compensation and Stock Options
Note 8: Stock-Based Compensation and Stock Options
     In October 2001, the Company granted to each director fully vested and exercisable options to purchase 30,000 shares of common stock with an exercise price of $2.00 per share for their services as a director in 2000 and 2001. A total of 210,000 options were granted. The options expire in October 2011. 150,000 options were exercised during the year ended December 31, 2005, 17,275 options were exercised during the year ended December 31, 2006, 30,000 options were exercised during the year ended December 31, 2008 and the remaining 12,725 of these options were exercised during the quarter ended March 31, 2011.
     In March 2002, the Company granted to each director options to purchase 5,000 shares of common stock with an exercise price of $3.00 per share that vested in connection with their services as a director in 2002. A total of 35,000 options were granted. The options expire in March 2012. In October 2002, 1,411 options were cancelled upon the resignation of a director, 23,589 options were exercised during the year ended December 31, 2004, 5,000 options were exercised during the year ended December 31, 2008 and the remaining 5,000 of these options were exercised during the quarter ended March 31, 2011.
     In November 2009, the Company granted to one of its employees options to purchase 300,000 shares of common stock with an exercise price of $14.97. 75,000 options vest and become exercisable annually starting July 1, 2011. The options expire in November 2019. As of June 30, 2011, none of the options were vested and 300,000 options were outstanding. Total stock-based compensation for the three months ended June 30, 2011 and 2010 was $187,000 for each period. Total stock-based compensation for the six months ended June 30, 2011 and 2010 was $375,000 for each period.
     As of June 30, 2011, there was approximately $2.2 million of unrecognized stock-based compensation expense related to outstanding stock options. This amount is expected to be recognized over 3.0 years. The Company used a forfeiture rate of 0% as the Company does not have enough historical forfeiture data to estimate the forfeiture rate. To the extent the actual forfeiture rate is different from what we have anticipated, stock-based compensation related to these options will be different from our expectations.