At December 31,2007, Braddock Company had a balance of $15,000 in the Allowance for Doubtful Accounts. During 2008, Braddock wrote off accounts totaling $13,000. One of those accounts ($1,800) was later collected. At December 31, 2008, an aging schedule indicated that the balance in the Allowance for Doubtful Accounts should be $19,000.