Employee Benefit Plans	9 Months Ended
Sep. 30, 2013
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plans	11. Employee benefit plans The Company has a defined contribution profit sharing 401(k) plan for eligible employees, which is qualified under Sections 401(a) and 401(k) of the Internal Revenue Code of 1986, as amended. Employees are entitled to make tax-deferred contributions of up to the maximum allowed by law of their eligible compensation. In addition, during the third quarter of 2013, the Company implemented a non-qualified deferred compensation plan for certain executives, key employees and non-employee directors through which participants may elect to postpone the receipt and taxation of a portion of their compensation, including stock-based compensation, received from the Company. Contributions to the plans are made by both the employee and the Company. Company contributions are based on the level of employee contributions and are immediately vested. The Company’s matching contributions to the 401(k) plan for the three months and nine months ended September 30, 2013, were approximately $188,000 and $520,000, respectively. The Company’s matching contributions to the to the 401(k) plan for the three and nine months ended September 30, 2012, were approximately $131,000 and $392,000, respectively. The Company expects to make matching contributions to the non-qualified deferred compensation plan related to the three month period ended September 30, 2013, of approximately $6,000. Future matching or profit sharing contributions to the plans are at the Company’s sole discretion.

11. Employee benefit plans

The Company has a defined contribution profit sharing 401(k) plan for eligible employees, which is qualified under Sections 401(a) and 401(k) of the Internal Revenue Code of 1986, as amended. Employees are entitled to make tax-deferred contributions of up to the maximum allowed by law of their eligible compensation. In addition, during the third quarter of 2013, the Company implemented a non-qualified deferred compensation plan for certain executives, key employees and non-employee directors through which participants may elect to postpone the receipt and taxation of a portion of their compensation, including stock-based compensation, received from the Company.

Contributions to the plans are made by both the employee and the Company. Company contributions are based on the level of employee contributions and are immediately vested. The Company’s matching contributions to the 401(k) plan for the three months and nine months ended September 30, 2013, were approximately $188,000 and $520,000, respectively. The Company’s matching contributions to the to the 401(k) plan for the three and nine months ended September 30, 2012, were approximately $131,000 and $392,000, respectively. The Company expects to make matching contributions to the non-qualified deferred compensation plan related to the three month period ended September 30, 2013, of approximately $6,000. Future matching or profit sharing contributions to the plans are at the Company’s sole discretion.