A judge has extended Winona Ryder's $20,000 bond because prosecutors haven't decided whether to charge her with shoplifting from a Saks Fifth Avenue store.

The 30-year-old actress appeared briefly in Superior Court on Thursday with defense attorney Mark Geragos before Judge Elden Fox, who ordered her to return on Feb. 8.

Ryder was arrested Dec. 12 for allegedly stealing merchandise worth $4,760, a felony grand theft. She also was booked on suspicion of carrying painkillers without a prescription.

The Los Angeles County district attorney's office was continuing to review the case, spokeswoman Sandi Gibbons said outside court.

"We want to review all the possible evidence before we make a decision on this case," Gibbons said.

Geragos contends that Ryder was merely carrying items between store departments, not trying to steal them. He said she has receipts for other items she bought in the store, and a valid prescription for the painkillers.