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Allowance For Doubtful Accounts For Trade Accounts Receivable | 12 Months Ended
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Oct. 31, 2011
Allowance For Doubtful Accounts For Trade Accounts Receivable [Abstract] |
Allowance For Doubtful Accounts For Trade Accounts Receivable | (3) Allowance for Doubtful Accounts for Trade Accounts Receivable A summary of changes in the allowance for doubtful accounts for trade accounts receivable for the years ended October 31, 2011, 2010 and 2009 follows:
|  |  |  |  | Years ended October 31, |  |
|  | 2011 |  |  | 2010 |  |  | 2009 |
Balance at beginning of year | $ | 120,450 |  | $ | 108,913 |  | $ | 150,941 |
Allowance of acquired subsidiary |  | — |  |  | — |  |  | 14,620 |
Bad debt expense (recovery) |  | 40,231 |  |  | 29,798 |  |  | (62,547 | )
Losses charged to allowance |  | (15,065 | ) |  | (18,261 | ) |  | (27,424 | )
Recoveries added to allowance |  | — |  |  | — |  |  | 33,323 |
Balance at end of year | $ | 145,616 |  | $ | 120,450 |  | $ | 108,913 |

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- Definition Allowance for doubtful accounts for trade accounts receivable + References No definition available. + Details
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