13. Employee Benefit Plans

The Company maintains a defined contribution 401(k) profit‑sharing plan in which all employees are eligible to participate. Employees may contribute up to Internal Revenue Service annual limits or, if less, 90% of their eligible compensation. Employees are fully vested in their contributions to the plan. The plan also provides for both Company matching and discretionary contributions, which are determined by the Board of Directors. The Company has been matching 50 cents on the dollar up to 4% of the employee’s contributions since October 2006. Prior to that date, no Company contributions had been made since the inception of the plan. The Company’s match vests 25% a year over four years starting from the employee’s hire date. The Company recorded expense of approximately $0.2 million and $0.3 million for the fiscal year ended March 31, 2018 and 2017, respectively.