Defined Contribution Plan	12 Months Ended
Defined Contribution Plan	Dec. 31, 2014
Defined Contribution Plan
Defined Contribution Plan	7. Defined Contribution Plan The Company maintains a defined contribution plan covering substantially all domestic employees. Participating employees may make contributions to the plan, through payroll deductions. Matching contributions are made by the Company equal to 50% of the employee’s contribution to the extent such employee contribution did not exceed 6% of their compensation. During the years ended December 31, 2014, 2013 and 2012, the Company expensed approximately $194 thousand, $182 thousand and $166 thousand, respectively, related to this plan.

The entire disclosure for pension and other postretirement benefits.