Ballman Corporation uses the allowance method to account for uncollectible receivables. At the beginning of the year, Allowance for Bad Debts had a credit balance of $2,000. During the year, Ballman wrote off uncollectible receivables of $4,200. Ballman also recorded an adjusting entry for $4,000 of bad debt for the current year. What is Ballman's year-end balance in Allowance for Bad Debts?