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

3 Months Ended

Feb. 28, 2023

Notes Tables

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

	February 28, 2023		November 30, 2022
Receivables	$	3,666,000	$	2,722,000
Assets		98,000		451,000
Liabilities		3,474,000		1,157,000