| 8. | Defined Contribution Benefit Plan |
The Company maintains a defined contribution 401(k) benefit plan covering substantially all employees. Employees are permitted to defer up to IRS limits, with the Company matching 100% of the first 3% deferred and 50% of the next 2% deferred. The Company’s expense under this plan was $863,000, $760,000 and $733,000 in 2013, 2012 and 2011, respectively.