Upper Crust, the bankrupt gourmet pizza chain accused of exploiting workers as it expanded across the region, owes employees about $850,000 in back wages and damages, according to court records filed by the US Department of Labor.

A federal investigation of pay practices at Upper Crust between April 2009 and January 2011 found the company violated minimum-wage and overtime laws and failed to pay 67 employees roughly $425,000 during that period.