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

6 Months Ended

May 31, 2023

Notes Tables

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

	May 31, 2023		November 30, 2022
Receivables	$	3,936,000	$	2,722,000
Assets		322,000		451,000
Liabilities		1,345,000		1,157,000