Note 2 - Allowance for Doubtful Accounts (Tables)

12 Months Ended

Nov. 30, 2021

Notes Tables

Financing Receivable, Allowance for Credit Loss [Table Text Block]

	Twelve Months Ended
	November 30, 2021			November 30, 2020
Balance, beginning	$	51,175		$	22,925
Provision (recovery) charged to expense		(4,160	)		44,222
Less amounts charged-off		(8,827	)		(15,972	)
Balance, ending	$	38,188		$	51,175