|9 Months Ended|
Sep. 30, 2012
|Stock Plans [Abstract]|
2. Stock Plans
The following table summarizes the stock-based compensation expense recorded for awards under the stock option plans for the three and nine month periods ended September 30, 2012 and 2011:
No tax benefit was recognized related to stock-based compensation expense since we have incurred operating losses and we have established a full valuation allowance to offset all the potential tax benefits associated with our deferred tax assets.
We use the Black-Scholes-Merton option-pricing model with the following assumptions to estimate the stock-based compensation expense for the three and nine month periods ended September 30, 2012 and 2011:
No options or awards were granted during the three month periods ended September 30, 2012 and 2011.
The following table summarizes option activity for the nine month period ended September 30, 2012:
As of September 30, 2012 there was approximately $0.6 million of total unrecognized compensation expense related to non-vested stock options. This expense is expected to be recognized over a weighted-average period of 0.5 years.
No shares of restricted stock were awarded to employees, directors and consultants during the three and nine month periods ended September 30, 2012.
The following table summarizes restricted stock activity for the nine month period ended September 30, 2012:
As of September 30, 2012 there was no unrecognized compensation expense related to non-vested awards.
The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.
Reference 1: http://www.xbrl.org/2003/role/presentationRef