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Allowance For Doubtful Accounts For Trade Accounts Receivable

9 Months Ended

Jul. 31, 2011

Allowance For Doubtful Accounts For Trade Accounts Receivable

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 nine months ended July 31, 2011 and 2010 follows:

								Nine Months Ended
								July 31,
								2011		2010
Balance at beginning of period							$	120,450	$	108,913
Bad debt expense, net								21,831		1,597
Losses charged to allowance								(3,930)		(3,045)
Balance at end of period							$	138,351	$	107,465

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