Alicia Parris did more than her assigned duties as a customer service agent at Detroit Metro Airport, federal authorities say.

The former part-time Delta employee is accused of swiping electronic flight vouchers worth $200 to $1,000 each so they could be resold at half the face value, according to a federal court filing Friday that's reported in the Free Press. Tresa Baldas has details:

She stole travel vouchers from the airline for a friend, who then sold them on the black market, according to court documents filed today.

It cost Delta Air Lines more than $52,000 in losses, the government said. 

The airline passes are compensation for passengers who are bumped from flights, delayed or inconvenienced in other ways.

Parris and Michael Thomas, a friend accused of selling the digital vouchers, are charged with access device fraud and wire fraud, Baldas writes. If convicted, they each face up to 20 years in prison.

Read more: Detroit Free Press