Note 3 - Accounts Receivable (Tables)

6 Months Ended

May 31, 2014

Receivables [Abstract]

Schedule of Accounts Receivable [Table Text Block]

	May 31, 2014			November 30, 2013
Gross accounts receivable	$	16,492		$	17,687
Allowance for doubtful accounts		(1,535	)		(1,607	)
Accounts receivable, net	$	14,957		$	16,080

Schedule of Credit Losses for Financing Receivables, Current [Table Text Block]

Balance at November 30, 2013	$	1,607
Additions charged to expense		108
Write-offs and other deductions		(180	)
Balance at May 31, 2014	$	1,535