Women's wear retailer Christopher & Banks says its interim chief executive Joel Waller will remain in the role for an additional three months until March.

Waller has entered into an amended employment agreement, meaning he will continue to serve as CEO and president until 31 March 2013 unless a successor is elected, according to a company SEC filing.

Waller, the former CEO of teen clothier Wet Seal, has over 30 years of retail experience. Before joining Wet Seal he was chairman and CEO of Wilsons Leather.

He was appointed for a one-year term in December, to help revitalise the business and get the company back on track to profitability.

In August, the women's wear retailer saw its second-quarter losses narrow on the back of rising same-store sales as new merchandising efforts take hold.