Note 3 - Allowance for Doubtful Accounts for Trade Accounts Receivable

9 Months Ended

Jul. 31, 2018

Notes to Financial Statements

Allowance for Doubtful Accounts for Trade Accounts Receivable Disclosure [Text Block]

( 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, 2018

and

2017

follows:

	Nine Months Ended
	July 31,
	2018			2017
Balance at beginning of period	$	87,446		$	74,266
Bad debt expense (recovery)		(29,247	)		6,161
Losses charged to allowance		(4,648	)		(4,729	)
Recoveries added to allowance		-			129
Balance at end of period	$	53,551		$	75,827