Note 4 - Contract Receivables, Contract Assets and Contract Liabilities (Tables)

3 Months Ended

Feb. 28, 2022

Notes Tables

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

	February 28, 2022		November 30, 2021
Receivables	$	1,583,000	$	2,663,000
Assets		146,000		177,000
Liabilities		2,263,000		559,000