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401(k) savings plan 401(k) savings plan
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12 Months Ended |
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Dec. 31, 2013
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| Compensation and Retirement Disclosure [Abstract] | |
| 401(k) savings plan | 401(k) savings plan The Company has established a defined contribution savings plan under Section 401(k) of the Internal Revenue Code (the plan). The plan covers substantially all employees. Under the plan, employees may make elective salary deferrals. In 2011, 2012 and 2013 the Company matched $43,000, $48,000 and $53,000, respectively, of employee contributions. |